Home / 25,789.79-38,687.42-9,151.28

Finding the Fourth Proportional to 25,789.79, 38,687.42 and 9,151.28

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Solution

The fourth proportional to 25,789.79, 38,687.42 and 9,151.28 is: 13,727.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,789.79 : 38,687.42 = 9,151.28 : x
  2. Step 2: Convert to fraction form
    25,789.79/38,687.42 = 9,151.28/x
  3. Step 3: Cross multiply
    25,789.79x = 38,687.42 × 9,151.28
  4. Step 4: Simplify right side
    25,789.79x = 354,039,387.42
  5. Step 5: Solve for x
    x = 354,039,387.42/25,789.79
  6. Step 6: Final answer
    x = 13,727.89

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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.