Home / 21,552.40-32,328.54-6,761.38

Finding the Fourth Proportional to 21,552.40, 32,328.54 and 6,761.38

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Solution

The fourth proportional to 21,552.40, 32,328.54 and 6,761.38 is: 10,142.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,552.40 : 32,328.54 = 6,761.38 : x
  2. Step 2: Convert to fraction form
    21,552.40/32,328.54 = 6,761.38/x
  3. Step 3: Cross multiply
    21,552.40x = 32,328.54 × 6,761.38
  4. Step 4: Simplify right side
    21,552.40x = 218,585,543.79
  5. Step 5: Solve for x
    x = 218,585,543.79/21,552.40
  6. Step 6: Final answer
    x = 10,142.05

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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.