Home / 20,366.28-28,107-11,414.16

Finding the Fourth Proportional to 20,366.28, 28,107 and 11,414.16

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Solution

The fourth proportional to 20,366.28, 28,107 and 11,414.16 is: 15,752.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,366.28 : 28,107 = 11,414.16 : x
  2. Step 2: Convert to fraction form
    20,366.28/28,107 = 11,414.16/x
  3. Step 3: Cross multiply
    20,366.28x = 28,107 × 11,414.16
  4. Step 4: Simplify right side
    20,366.28x = 320,817,795.12
  5. Step 5: Solve for x
    x = 320,817,795.12/20,366.28
  6. Step 6: Final answer
    x = 15,752.40

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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.