Home / 28,180.17-38,888.82-15,604.92

Finding the Fourth Proportional to 28,180.17, 38,888.82 and 15,604.92

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Solution

The fourth proportional to 28,180.17, 38,888.82 and 15,604.92 is: 21,534.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,180.17 : 38,888.82 = 15,604.92 : x
  2. Step 2: Convert to fraction form
    28,180.17/38,888.82 = 15,604.92/x
  3. Step 3: Cross multiply
    28,180.17x = 38,888.82 × 15,604.92
  4. Step 4: Simplify right side
    28,180.17x = 606,856,924.99
  5. Step 5: Solve for x
    x = 606,856,924.99/28,180.17
  6. Step 6: Final answer
    x = 21,534.89

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Half scale
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Double scale
Find fourth proportional to 28,181.17, 38,890.20 and 15,605.92
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.