Home / 39,151.75-54,029.42-22,387.99

Finding the Fourth Proportional to 39,151.75, 54,029.42 and 22,387.99

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Solution

The fourth proportional to 39,151.75, 54,029.42 and 22,387.99 is: 30,895.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,151.75 : 54,029.42 = 22,387.99 : x
  2. Step 2: Convert to fraction form
    39,151.75/54,029.42 = 22,387.99/x
  3. Step 3: Cross multiply
    39,151.75x = 54,029.42 × 22,387.99
  4. Step 4: Simplify right side
    39,151.75x = 1,209,610,114.67
  5. Step 5: Solve for x
    x = 1,209,610,114.67/39,151.75
  6. Step 6: Final answer
    x = 30,895.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.