Home / 42,001.74-62,996.94-12,422.70

Finding the Fourth Proportional to 42,001.74, 62,996.94 and 12,422.70

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Solution

The fourth proportional to 42,001.74, 62,996.94 and 12,422.70 is: 18,632.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,001.74 : 62,996.94 = 12,422.70 : x
  2. Step 2: Convert to fraction form
    42,001.74/62,996.94 = 12,422.70/x
  3. Step 3: Cross multiply
    42,001.74x = 62,996.94 × 12,422.70
  4. Step 4: Simplify right side
    42,001.74x = 782,592,086.54
  5. Step 5: Solve for x
    x = 782,592,086.54/42,001.74
  6. Step 6: Final answer
    x = 18,632.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.