Home / 38,428.92-57,651.92-11,778.60

Finding the Fourth Proportional to 38,428.92, 57,651.92 and 11,778.60

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Solution

The fourth proportional to 38,428.92, 57,651.92 and 11,778.60 is: 17,670.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,428.92 : 57,651.92 = 11,778.60 : x
  2. Step 2: Convert to fraction form
    38,428.92/57,651.92 = 11,778.60/x
  3. Step 3: Cross multiply
    38,428.92x = 57,651.92 × 11,778.60
  4. Step 4: Simplify right side
    38,428.92x = 679,058,904.91
  5. Step 5: Solve for x
    x = 679,058,904.91/38,428.92
  6. Step 6: Final answer
    x = 17,670.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.