Home / 39,679.02-54,755.73-22,449.78

Finding the Fourth Proportional to 39,679.02, 54,755.73 and 22,449.78

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Solution

The fourth proportional to 39,679.02, 54,755.73 and 22,449.78 is: 30,979.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,679.02 : 54,755.73 = 22,449.78 : x
  2. Step 2: Convert to fraction form
    39,679.02/54,755.73 = 22,449.78/x
  3. Step 3: Cross multiply
    39,679.02x = 54,755.73 × 22,449.78
  4. Step 4: Simplify right side
    39,679.02x = 1,229,254,092.24
  5. Step 5: Solve for x
    x = 1,229,254,092.24/39,679.02
  6. Step 6: Final answer
    x = 30,979.95

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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.