Home / 38,277.20-57,417.60-11,982.80

Finding the Fourth Proportional to 38,277.20, 57,417.60 and 11,982.80

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Solution

The fourth proportional to 38,277.20, 57,417.60 and 11,982.80 is: 17,974.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,277.20 : 57,417.60 = 11,982.80 : x
  2. Step 2: Convert to fraction form
    38,277.20/57,417.60 = 11,982.80/x
  3. Step 3: Cross multiply
    38,277.20x = 57,417.60 × 11,982.80
  4. Step 4: Simplify right side
    38,277.20x = 688,023,617.28
  5. Step 5: Solve for x
    x = 688,023,617.28/38,277.20
  6. Step 6: Final answer
    x = 17,974.76

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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.