Home / 21,446.46-32,171.10-7,407.84

Finding the Fourth Proportional to 21,446.46, 32,171.10 and 7,407.84

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Solution

The fourth proportional to 21,446.46, 32,171.10 and 7,407.84 is: 11,112.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,446.46 : 32,171.10 = 7,407.84 : x
  2. Step 2: Convert to fraction form
    21,446.46/32,171.10 = 7,407.84/x
  3. Step 3: Cross multiply
    21,446.46x = 32,171.10 × 7,407.84
  4. Step 4: Simplify right side
    21,446.46x = 238,318,361.42
  5. Step 5: Solve for x
    x = 238,318,361.42/21,446.46
  6. Step 6: Final answer
    x = 11,112.25

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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.