Home / 25,164.50-34,729.17-13,988.66

Finding the Fourth Proportional to 25,164.50, 34,729.17 and 13,988.66

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Solution

The fourth proportional to 25,164.50, 34,729.17 and 13,988.66 is: 19,305.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,164.50 : 34,729.17 = 13,988.66 : x
  2. Step 2: Convert to fraction form
    25,164.50/34,729.17 = 13,988.66/x
  3. Step 3: Cross multiply
    25,164.50x = 34,729.17 × 13,988.66
  4. Step 4: Simplify right side
    25,164.50x = 485,814,551.21
  5. Step 5: Solve for x
    x = 485,814,551.21/25,164.50
  6. Step 6: Final answer
    x = 19,305.55

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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.