Home / 22,691.67-31,314.57-12,620.76

Finding the Fourth Proportional to 22,691.67, 31,314.57 and 12,620.76

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Solution

The fourth proportional to 22,691.67, 31,314.57 and 12,620.76 is: 17,416.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,691.67 : 31,314.57 = 12,620.76 : x
  2. Step 2: Convert to fraction form
    22,691.67/31,314.57 = 12,620.76/x
  3. Step 3: Cross multiply
    22,691.67x = 31,314.57 × 12,620.76
  4. Step 4: Simplify right side
    22,691.67x = 395,213,672.47
  5. Step 5: Solve for x
    x = 395,213,672.47/22,691.67
  6. Step 6: Final answer
    x = 17,416.69

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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.