Home / 20,839.08-31,268.84-9,744.13

Finding the Fourth Proportional to 20,839.08, 31,268.84 and 9,744.13

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Solution

The fourth proportional to 20,839.08, 31,268.84 and 9,744.13 is: 14,620.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,839.08 : 31,268.84 = 9,744.13 : x
  2. Step 2: Convert to fraction form
    20,839.08/31,268.84 = 9,744.13/x
  3. Step 3: Cross multiply
    20,839.08x = 31,268.84 × 9,744.13
  4. Step 4: Simplify right side
    20,839.08x = 304,687,641.91
  5. Step 5: Solve for x
    x = 304,687,641.91/20,839.08
  6. Step 6: Final answer
    x = 14,620.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.