Home / 39,406.67-54,381.36-21,502.04

Finding the Fourth Proportional to 39,406.67, 54,381.36 and 21,502.04

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Solution

The fourth proportional to 39,406.67, 54,381.36 and 21,502.04 is: 29,672.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,406.67 : 54,381.36 = 21,502.04 : x
  2. Step 2: Convert to fraction form
    39,406.67/54,381.36 = 21,502.04/x
  3. Step 3: Cross multiply
    39,406.67x = 54,381.36 × 21,502.04
  4. Step 4: Simplify right side
    39,406.67x = 1,169,309,906.07
  5. Step 5: Solve for x
    x = 1,169,309,906.07/39,406.67
  6. Step 6: Final answer
    x = 29,672.90

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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.