Home / 39,134.24-54,003.80-21,228.66

Finding the Fourth Proportional to 39,134.24, 54,003.80 and 21,228.66

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Solution

The fourth proportional to 39,134.24, 54,003.80 and 21,228.66 is: 29,294.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,134.24 : 54,003.80 = 21,228.66 : x
  2. Step 2: Convert to fraction form
    39,134.24/54,003.80 = 21,228.66/x
  3. Step 3: Cross multiply
    39,134.24x = 54,003.80 × 21,228.66
  4. Step 4: Simplify right side
    39,134.24x = 1,146,428,308.91
  5. Step 5: Solve for x
    x = 1,146,428,308.91/39,134.24
  6. Step 6: Final answer
    x = 29,294.76

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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.