Home / 39,299.71-54,233.60-21,394.85

Finding the Fourth Proportional to 39,299.71, 54,233.60 and 21,394.85

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Solution

The fourth proportional to 39,299.71, 54,233.60 and 21,394.85 is: 29,524.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,299.71 : 54,233.60 = 21,394.85 : x
  2. Step 2: Convert to fraction form
    39,299.71/54,233.60 = 21,394.85/x
  3. Step 3: Cross multiply
    39,299.71x = 54,233.60 × 21,394.85
  4. Step 4: Simplify right side
    39,299.71x = 1,160,319,736.96
  5. Step 5: Solve for x
    x = 1,160,319,736.96/39,299.71
  6. Step 6: Final answer
    x = 29,524.89

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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.