Home / 37,121.68-55,711.68-20,493.19

Finding the Fourth Proportional to 37,121.68, 55,711.68 and 20,493.19

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Solution

The fourth proportional to 37,121.68, 55,711.68 and 20,493.19 is: 30,755.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,121.68 : 55,711.68 = 20,493.19 : x
  2. Step 2: Convert to fraction form
    37,121.68/55,711.68 = 20,493.19/x
  3. Step 3: Cross multiply
    37,121.68x = 55,711.68 × 20,493.19
  4. Step 4: Simplify right side
    37,121.68x = 1,141,710,043.46
  5. Step 5: Solve for x
    x = 1,141,710,043.46/37,121.68
  6. Step 6: Final answer
    x = 30,755.88

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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.