Home / 21,305.17-31,959.24-6,512.95

Finding the Fourth Proportional to 21,305.17, 31,959.24 and 6,512.95

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Solution

The fourth proportional to 21,305.17, 31,959.24 and 6,512.95 is: 9,769.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,305.17 : 31,959.24 = 6,512.95 : x
  2. Step 2: Convert to fraction form
    21,305.17/31,959.24 = 6,512.95/x
  3. Step 3: Cross multiply
    21,305.17x = 31,959.24 × 6,512.95
  4. Step 4: Simplify right side
    21,305.17x = 208,148,932.16
  5. Step 5: Solve for x
    x = 208,148,932.16/21,305.17
  6. Step 6: Final answer
    x = 9,769.88

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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.