Home / 25,565.85-38,404.68-18,217.53

Finding the Fourth Proportional to 25,565.85, 38,404.68 and 18,217.53

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Solution

The fourth proportional to 25,565.85, 38,404.68 and 18,217.53 is: 27,366.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,565.85 : 38,404.68 = 18,217.53 : x
  2. Step 2: Convert to fraction form
    25,565.85/38,404.68 = 18,217.53/x
  3. Step 3: Cross multiply
    25,565.85x = 38,404.68 × 18,217.53
  4. Step 4: Simplify right side
    25,565.85x = 699,638,410.04
  5. Step 5: Solve for x
    x = 699,638,410.04/25,565.85
  6. Step 6: Final answer
    x = 27,366.13

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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.