Home / 21,177.34-31,766.01-8,695.24

Finding the Fourth Proportional to 21,177.34, 31,766.01 and 8,695.24

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Solution

The fourth proportional to 21,177.34, 31,766.01 and 8,695.24 is: 13,042.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,177.34 : 31,766.01 = 8,695.24 : x
  2. Step 2: Convert to fraction form
    21,177.34/31,766.01 = 8,695.24/x
  3. Step 3: Cross multiply
    21,177.34x = 31,766.01 × 8,695.24
  4. Step 4: Simplify right side
    21,177.34x = 276,213,080.79
  5. Step 5: Solve for x
    x = 276,213,080.79/21,177.34
  6. Step 6: Final answer
    x = 13,042.86

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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.