Home / 21,042.06-31,566.11-6,997.47

Finding the Fourth Proportional to 21,042.06, 31,566.11 and 6,997.47

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Solution

The fourth proportional to 21,042.06, 31,566.11 and 6,997.47 is: 10,497.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,042.06 : 31,566.11 = 6,997.47 : x
  2. Step 2: Convert to fraction form
    21,042.06/31,566.11 = 6,997.47/x
  3. Step 3: Cross multiply
    21,042.06x = 31,566.11 × 6,997.47
  4. Step 4: Simplify right side
    21,042.06x = 220,882,872.75
  5. Step 5: Solve for x
    x = 220,882,872.75/21,042.06
  6. Step 6: Final answer
    x = 10,497.21

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1.5x scale

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.