Home / 25,320.91-34,939.87-13,989.73

Finding the Fourth Proportional to 25,320.91, 34,939.87 and 13,989.73

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Solution

The fourth proportional to 25,320.91, 34,939.87 and 13,989.73 is: 19,304.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,320.91 : 34,939.87 = 13,989.73 : x
  2. Step 2: Convert to fraction form
    25,320.91/34,939.87 = 13,989.73/x
  3. Step 3: Cross multiply
    25,320.91x = 34,939.87 × 13,989.73
  4. Step 4: Simplify right side
    25,320.91x = 488,799,347.54
  5. Step 5: Solve for x
    x = 488,799,347.54/25,320.91
  6. Step 6: Final answer
    x = 19,304.18

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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.