Home / 28,146.12-38,805.12-17,516.76

Finding the Fourth Proportional to 28,146.12, 38,805.12 and 17,516.76

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Solution

The fourth proportional to 28,146.12, 38,805.12 and 17,516.76 is: 24,150.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,146.12 : 38,805.12 = 17,516.76 : x
  2. Step 2: Convert to fraction form
    28,146.12/38,805.12 = 17,516.76/x
  3. Step 3: Cross multiply
    28,146.12x = 38,805.12 × 17,516.76
  4. Step 4: Simplify right side
    28,146.12x = 679,739,973.81
  5. Step 5: Solve for x
    x = 679,739,973.81/28,146.12
  6. Step 6: Final answer
    x = 24,150.40

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Find fourth proportional to 28,147.12, 38,806.50 and 17,517.76
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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.