Home / 39,151.98-58,720.68-18,091.20

Finding the Fourth Proportional to 39,151.98, 58,720.68 and 18,091.20

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Solution

The fourth proportional to 39,151.98, 58,720.68 and 18,091.20 is: 27,133.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,151.98 : 58,720.68 = 18,091.20 : x
  2. Step 2: Convert to fraction form
    39,151.98/58,720.68 = 18,091.20/x
  3. Step 3: Cross multiply
    39,151.98x = 58,720.68 × 18,091.20
  4. Step 4: Simplify right side
    39,151.98x = 1,062,327,566.02
  5. Step 5: Solve for x
    x = 1,062,327,566.02/39,151.98
  6. Step 6: Final answer
    x = 27,133.43

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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.