Home / 39,542.28-54,501.84-29,979

Finding the Fourth Proportional to 39,542.28, 54,501.84 and 29,979

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Solution

The fourth proportional to 39,542.28, 54,501.84 and 29,979 is: 41,320.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,542.28 : 54,501.84 = 29,979 : x
  2. Step 2: Convert to fraction form
    39,542.28/54,501.84 = 29,979/x
  3. Step 3: Cross multiply
    39,542.28x = 54,501.84 × 29,979
  4. Step 4: Simplify right side
    39,542.28x = 1,633,910,661.36
  5. Step 5: Solve for x
    x = 1,633,910,661.36/39,542.28
  6. Step 6: Final answer
    x = 41,320.60

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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.