Home / 22,764.30-31,412.44-12,691.79

Finding the Fourth Proportional to 22,764.30, 31,412.44 and 12,691.79

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Solution

The fourth proportional to 22,764.30, 31,412.44 and 12,691.79 is: 17,513.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,764.30 : 31,412.44 = 12,691.79 : x
  2. Step 2: Convert to fraction form
    22,764.30/31,412.44 = 12,691.79/x
  3. Step 3: Cross multiply
    22,764.30x = 31,412.44 × 12,691.79
  4. Step 4: Simplify right side
    22,764.30x = 398,680,138.67
  5. Step 5: Solve for x
    x = 398,680,138.67/22,764.30
  6. Step 6: Final answer
    x = 17,513.39

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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.