Home / 36,939.14-55,433.02-13,565.78

Finding the Fourth Proportional to 36,939.14, 55,433.02 and 13,565.78

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Solution

The fourth proportional to 36,939.14, 55,433.02 and 13,565.78 is: 20,357.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,939.14 : 55,433.02 = 13,565.78 : x
  2. Step 2: Convert to fraction form
    36,939.14/55,433.02 = 13,565.78/x
  3. Step 3: Cross multiply
    36,939.14x = 55,433.02 × 13,565.78
  4. Step 4: Simplify right side
    36,939.14x = 751,992,154.06
  5. Step 5: Solve for x
    x = 751,992,154.06/36,939.14
  6. Step 6: Final answer
    x = 20,357.60

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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.