Home / 37,981.80-56,955.38-15,781.92

Finding the Fourth Proportional to 37,981.80, 56,955.38 and 15,781.92

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Solution

The fourth proportional to 37,981.80, 56,955.38 and 15,781.92 is: 23,665.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,981.80 : 56,955.38 = 15,781.92 : x
  2. Step 2: Convert to fraction form
    37,981.80/56,955.38 = 15,781.92/x
  3. Step 3: Cross multiply
    37,981.80x = 56,955.38 × 15,781.92
  4. Step 4: Simplify right side
    37,981.80x = 898,865,250.73
  5. Step 5: Solve for x
    x = 898,865,250.73/37,981.80
  6. Step 6: Final answer
    x = 23,665.68

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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.