Home / 21,688.22-32,531.88-6,897.17

Finding the Fourth Proportional to 21,688.22, 32,531.88 and 6,897.17

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Solution

The fourth proportional to 21,688.22, 32,531.88 and 6,897.17 is: 10,345.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,688.22 : 32,531.88 = 6,897.17 : x
  2. Step 2: Convert to fraction form
    21,688.22/32,531.88 = 6,897.17/x
  3. Step 3: Cross multiply
    21,688.22x = 32,531.88 × 6,897.17
  4. Step 4: Simplify right side
    21,688.22x = 224,377,906.78
  5. Step 5: Solve for x
    x = 224,377,906.78/21,688.22
  6. Step 6: Final answer
    x = 10,345.61

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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.