Home / 39,617.38-54,672.41-21,712.00

Finding the Fourth Proportional to 39,617.38, 54,672.41 and 21,712.00

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Solution

The fourth proportional to 39,617.38, 54,672.41 and 21,712.00 is: 29,962.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,617.38 : 54,672.41 = 21,712.00 : x
  2. Step 2: Convert to fraction form
    39,617.38/54,672.41 = 21,712.00/x
  3. Step 3: Cross multiply
    39,617.38x = 54,672.41 × 21,712.00
  4. Step 4: Simplify right side
    39,617.38x = 1,187,047,283.52
  5. Step 5: Solve for x
    x = 1,187,047,283.52/39,617.38
  6. Step 6: Final answer
    x = 29,962.79

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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.