Home / 27,559.69-38,032.80-15,622.76

Finding the Fourth Proportional to 27,559.69, 38,032.80 and 15,622.76

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Solution

The fourth proportional to 27,559.69, 38,032.80 and 15,622.76 is: 21,559.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,559.69 : 38,032.80 = 15,622.76 : x
  2. Step 2: Convert to fraction form
    27,559.69/38,032.80 = 15,622.76/x
  3. Step 3: Cross multiply
    27,559.69x = 38,032.80 × 15,622.76
  4. Step 4: Simplify right side
    27,559.69x = 594,177,306.53
  5. Step 5: Solve for x
    x = 594,177,306.53/27,559.69
  6. Step 6: Final answer
    x = 21,559.65

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Find fourth proportional to 13,779.85, 19,016.40 and 7,811.38
Half scale
Find fourth proportional to 55,119.38, 76,065.60 and 31,245.52
Double scale
Find fourth proportional to 27,560.69, 38,034.18 and 15,623.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.