Home / 36,781.29-55,165.76-10,479.78

Finding the Fourth Proportional to 36,781.29, 55,165.76 and 10,479.78

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Solution

The fourth proportional to 36,781.29, 55,165.76 and 10,479.78 is: 15,717.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,781.29 : 55,165.76 = 10,479.78 : x
  2. Step 2: Convert to fraction form
    36,781.29/55,165.76 = 10,479.78/x
  3. Step 3: Cross multiply
    36,781.29x = 55,165.76 × 10,479.78
  4. Step 4: Simplify right side
    36,781.29x = 578,125,015.23
  5. Step 5: Solve for x
    x = 578,125,015.23/36,781.29
  6. Step 6: Final answer
    x = 15,717.91

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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.