Home / 30,531.35-42,158-22,658.15

Finding the Fourth Proportional to 30,531.35, 42,158 and 22,658.15

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Solution

The fourth proportional to 30,531.35, 42,158 and 22,658.15 is: 31,286.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,531.35 : 42,158 = 22,658.15 : x
  2. Step 2: Convert to fraction form
    30,531.35/42,158 = 22,658.15/x
  3. Step 3: Cross multiply
    30,531.35x = 42,158 × 22,658.15
  4. Step 4: Simplify right side
    30,531.35x = 955,222,287.70
  5. Step 5: Solve for x
    x = 955,222,287.70/30,531.35
  6. Step 6: Final answer
    x = 31,286.61

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.