Home / 39,407.22-54,380.92-21,502.22

Finding the Fourth Proportional to 39,407.22, 54,380.92 and 21,502.22

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Solution

The fourth proportional to 39,407.22, 54,380.92 and 21,502.22 is: 29,672.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,407.22 : 54,380.92 = 21,502.22 : x
  2. Step 2: Convert to fraction form
    39,407.22/54,380.92 = 21,502.22/x
  3. Step 3: Cross multiply
    39,407.22x = 54,380.92 × 21,502.22
  4. Step 4: Simplify right side
    39,407.22x = 1,169,310,505.64
  5. Step 5: Solve for x
    x = 1,169,310,505.64/39,407.22
  6. Step 6: Final answer
    x = 29,672.49

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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.