Home / 36,031.12-49,731.24-21,131.92

Finding the Fourth Proportional to 36,031.12, 49,731.24 and 21,131.92

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Solution

The fourth proportional to 36,031.12, 49,731.24 and 21,131.92 is: 29,166.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,031.12 : 49,731.24 = 21,131.92 : x
  2. Step 2: Convert to fraction form
    36,031.12/49,731.24 = 21,131.92/x
  3. Step 3: Cross multiply
    36,031.12x = 49,731.24 × 21,131.92
  4. Step 4: Simplify right side
    36,031.12x = 1,050,916,585.18
  5. Step 5: Solve for x
    x = 1,050,916,585.18/36,031.12
  6. Step 6: Final answer
    x = 29,166.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.