Home / 22,962.59-31,687.35-12,890.85

Finding the Fourth Proportional to 22,962.59, 31,687.35 and 12,890.85

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Solution

The fourth proportional to 22,962.59, 31,687.35 and 12,890.85 is: 17,788.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,962.59 : 31,687.35 = 12,890.85 : x
  2. Step 2: Convert to fraction form
    22,962.59/31,687.35 = 12,890.85/x
  3. Step 3: Cross multiply
    22,962.59x = 31,687.35 × 12,890.85
  4. Step 4: Simplify right side
    22,962.59x = 408,476,781.09
  5. Step 5: Solve for x
    x = 408,476,781.09/22,962.59
  6. Step 6: Final answer
    x = 17,788.79

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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.