Home / 20,454.16-28,226.17-11,501.43

Finding the Fourth Proportional to 20,454.16, 28,226.17 and 11,501.43

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Solution

The fourth proportional to 20,454.16, 28,226.17 and 11,501.43 is: 15,871.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,454.16 : 28,226.17 = 11,501.43 : x
  2. Step 2: Convert to fraction form
    20,454.16/28,226.17 = 11,501.43/x
  3. Step 3: Cross multiply
    20,454.16x = 28,226.17 × 11,501.43
  4. Step 4: Simplify right side
    20,454.16x = 324,641,177.29
  5. Step 5: Solve for x
    x = 324,641,177.29/20,454.16
  6. Step 6: Final answer
    x = 15,871.65

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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.