Home / 38,424.19-57,640.12-11,769.87

Finding the Fourth Proportional to 38,424.19, 57,640.12 and 11,769.87

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Solution

The fourth proportional to 38,424.19, 57,640.12 and 11,769.87 is: 17,655.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,424.19 : 57,640.12 = 11,769.87 : x
  2. Step 2: Convert to fraction form
    38,424.19/57,640.12 = 11,769.87/x
  3. Step 3: Cross multiply
    38,424.19x = 57,640.12 × 11,769.87
  4. Step 4: Simplify right side
    38,424.19x = 678,416,698.87
  5. Step 5: Solve for x
    x = 678,416,698.87/38,424.19
  6. Step 6: Final answer
    x = 17,655.98

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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.