Home / 25,078.85-34,609.17-15,007.71

Finding the Fourth Proportional to 25,078.85, 34,609.17 and 15,007.71

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Solution

The fourth proportional to 25,078.85, 34,609.17 and 15,007.71 is: 20,710.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,078.85 : 34,609.17 = 15,007.71 : x
  2. Step 2: Convert to fraction form
    25,078.85/34,609.17 = 15,007.71/x
  3. Step 3: Cross multiply
    25,078.85x = 34,609.17 × 15,007.71
  4. Step 4: Simplify right side
    25,078.85x = 519,404,386.70
  5. Step 5: Solve for x
    x = 519,404,386.70/25,078.85
  6. Step 6: Final answer
    x = 20,710.86

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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.