Home / 21,688.10-32,531.54-6,897.90

Finding the Fourth Proportional to 21,688.10, 32,531.54 and 6,897.90

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Solution

The fourth proportional to 21,688.10, 32,531.54 and 6,897.90 is: 10,346.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,688.10 : 32,531.54 = 6,897.90 : x
  2. Step 2: Convert to fraction form
    21,688.10/32,531.54 = 6,897.90/x
  3. Step 3: Cross multiply
    21,688.10x = 32,531.54 × 6,897.90
  4. Step 4: Simplify right side
    21,688.10x = 224,399,275.28
  5. Step 5: Solve for x
    x = 224,399,275.28/21,688.10
  6. Step 6: Final answer
    x = 10,346.66

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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.