Home / 37,122.04-55,720.13-20,489.90

Finding the Fourth Proportional to 37,122.04, 55,720.13 and 20,489.90

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Solution

The fourth proportional to 37,122.04, 55,720.13 and 20,489.90 is: 30,755.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,122.04 : 55,720.13 = 20,489.90 : x
  2. Step 2: Convert to fraction form
    37,122.04/55,720.13 = 20,489.90/x
  3. Step 3: Cross multiply
    37,122.04x = 55,720.13 × 20,489.90
  4. Step 4: Simplify right side
    37,122.04x = 1,141,699,928.54
  5. Step 5: Solve for x
    x = 1,141,699,928.54/37,122.04
  6. Step 6: Final answer
    x = 30,755.31

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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.