Home / 38,660.80-57,991.20-26,372.80

Finding the Fourth Proportional to 38,660.80, 57,991.20 and 26,372.80

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Solution

The fourth proportional to 38,660.80, 57,991.20 and 26,372.80 is: 39,559.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,660.80 : 57,991.20 = 26,372.80 : x
  2. Step 2: Convert to fraction form
    38,660.80/57,991.20 = 26,372.80/x
  3. Step 3: Cross multiply
    38,660.80x = 57,991.20 × 26,372.80
  4. Step 4: Simplify right side
    38,660.80x = 1,529,390,319.36
  5. Step 5: Solve for x
    x = 1,529,390,319.36/38,660.80
  6. Step 6: Final answer
    x = 39,559.20

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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.