Home / 25,265.90-34,867.20-13,935.87

Finding the Fourth Proportional to 25,265.90, 34,867.20 and 13,935.87

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Solution

The fourth proportional to 25,265.90, 34,867.20 and 13,935.87 is: 19,231.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,265.90 : 34,867.20 = 13,935.87 : x
  2. Step 2: Convert to fraction form
    25,265.90/34,867.20 = 13,935.87/x
  3. Step 3: Cross multiply
    25,265.90x = 34,867.20 × 13,935.87
  4. Step 4: Simplify right side
    25,265.90x = 485,904,766.46
  5. Step 5: Solve for x
    x = 485,904,766.46/25,265.90
  6. Step 6: Final answer
    x = 19,231.65

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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.