Home / 38,431.44-57,655.68-11,781.12

Finding the Fourth Proportional to 38,431.44, 57,655.68 and 11,781.12

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Solution

The fourth proportional to 38,431.44, 57,655.68 and 11,781.12 is: 17,674.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,431.44 : 57,655.68 = 11,781.12 : x
  2. Step 2: Convert to fraction form
    38,431.44/57,655.68 = 11,781.12/x
  3. Step 3: Cross multiply
    38,431.44x = 57,655.68 × 11,781.12
  4. Step 4: Simplify right side
    38,431.44x = 679,248,484.76
  5. Step 5: Solve for x
    x = 679,248,484.76/38,431.44
  6. Step 6: Final answer
    x = 17,674.29

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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.