Home / 21,561.19-32,343.15-6,770.69

Finding the Fourth Proportional to 21,561.19, 32,343.15 and 6,770.69

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Solution

The fourth proportional to 21,561.19, 32,343.15 and 6,770.69 is: 10,156.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,561.19 : 32,343.15 = 6,770.69 : x
  2. Step 2: Convert to fraction form
    21,561.19/32,343.15 = 6,770.69/x
  3. Step 3: Cross multiply
    21,561.19x = 32,343.15 × 6,770.69
  4. Step 4: Simplify right side
    21,561.19x = 218,985,442.27
  5. Step 5: Solve for x
    x = 218,985,442.27/21,561.19
  6. Step 6: Final answer
    x = 10,156.46

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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.