Home / 47,331.92-65,306.40-28,930.38

Finding the Fourth Proportional to 47,331.92, 65,306.40 and 28,930.38

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Solution

The fourth proportional to 47,331.92, 65,306.40 and 28,930.38 is: 39,916.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,331.92 : 65,306.40 = 28,930.38 : x
  2. Step 2: Convert to fraction form
    47,331.92/65,306.40 = 28,930.38/x
  3. Step 3: Cross multiply
    47,331.92x = 65,306.40 × 28,930.38
  4. Step 4: Simplify right side
    47,331.92x = 1,889,338,968.43
  5. Step 5: Solve for x
    x = 1,889,338,968.43/47,331.92
  6. Step 6: Final answer
    x = 39,916.80

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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.