Home / 20,417.10-28,173.87-11,463.90

Finding the Fourth Proportional to 20,417.10, 28,173.87 and 11,463.90

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Solution

The fourth proportional to 20,417.10, 28,173.87 and 11,463.90 is: 15,819.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,417.10 : 28,173.87 = 11,463.90 : x
  2. Step 2: Convert to fraction form
    20,417.10/28,173.87 = 11,463.90/x
  3. Step 3: Cross multiply
    20,417.10x = 28,173.87 × 11,463.90
  4. Step 4: Simplify right side
    20,417.10x = 322,982,428.29
  5. Step 5: Solve for x
    x = 322,982,428.29/20,417.10
  6. Step 6: Final answer
    x = 15,819.21

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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.