Home / 39,299.31-54,233.01-21,394.42

Finding the Fourth Proportional to 39,299.31, 54,233.01 and 21,394.42

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Solution

The fourth proportional to 39,299.31, 54,233.01 and 21,394.42 is: 29,524.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,299.31 : 54,233.01 = 21,394.42 : x
  2. Step 2: Convert to fraction form
    39,299.31/54,233.01 = 21,394.42/x
  3. Step 3: Cross multiply
    39,299.31x = 54,233.01 × 21,394.42
  4. Step 4: Simplify right side
    39,299.31x = 1,160,283,793.80
  5. Step 5: Solve for x
    x = 1,160,283,793.80/39,299.31
  6. Step 6: Final answer
    x = 29,524.28

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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.