Home / 25,565.28-38,331.72-10,784.40

Finding the Fourth Proportional to 25,565.28, 38,331.72 and 10,784.40

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Solution

The fourth proportional to 25,565.28, 38,331.72 and 10,784.40 is: 16,169.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,565.28 : 38,331.72 = 10,784.40 : x
  2. Step 2: Convert to fraction form
    25,565.28/38,331.72 = 10,784.40/x
  3. Step 3: Cross multiply
    25,565.28x = 38,331.72 × 10,784.40
  4. Step 4: Simplify right side
    25,565.28x = 413,384,601.17
  5. Step 5: Solve for x
    x = 413,384,601.17/25,565.28
  6. Step 6: Final answer
    x = 16,169.77

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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.