Home / 23,179.49-31,987.39-12,568.90

Finding the Fourth Proportional to 23,179.49, 31,987.39 and 12,568.90

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Solution

The fourth proportional to 23,179.49, 31,987.39 and 12,568.90 is: 17,344.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,179.49 : 31,987.39 = 12,568.90 : x
  2. Step 2: Convert to fraction form
    23,179.49/31,987.39 = 12,568.90/x
  3. Step 3: Cross multiply
    23,179.49x = 31,987.39 × 12,568.90
  4. Step 4: Simplify right side
    23,179.49x = 402,046,306.17
  5. Step 5: Solve for x
    x = 402,046,306.17/23,179.49
  6. Step 6: Final answer
    x = 17,344.92

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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.