Home / 39,049.20-53,887.92-21,144.36

Finding the Fourth Proportional to 39,049.20, 53,887.92 and 21,144.36

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Solution

The fourth proportional to 39,049.20, 53,887.92 and 21,144.36 is: 29,179.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,049.20 : 53,887.92 = 21,144.36 : x
  2. Step 2: Convert to fraction form
    39,049.20/53,887.92 = 21,144.36/x
  3. Step 3: Cross multiply
    39,049.20x = 53,887.92 × 21,144.36
  4. Step 4: Simplify right side
    39,049.20x = 1,139,425,580.13
  5. Step 5: Solve for x
    x = 1,139,425,580.13/39,049.20
  6. Step 6: Final answer
    x = 29,179.23

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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.