Home / 39,326.64-54,269.56-21,421.36

Finding the Fourth Proportional to 39,326.64, 54,269.56 and 21,421.36

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Solution

The fourth proportional to 39,326.64, 54,269.56 and 21,421.36 is: 29,560.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,326.64 : 54,269.56 = 21,421.36 : x
  2. Step 2: Convert to fraction form
    39,326.64/54,269.56 = 21,421.36/x
  3. Step 3: Cross multiply
    39,326.64x = 54,269.56 × 21,421.36
  4. Step 4: Simplify right side
    39,326.64x = 1,162,527,781.80
  5. Step 5: Solve for x
    x = 1,162,527,781.80/39,326.64
  6. Step 6: Final answer
    x = 29,560.82

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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.