Home / 21,917.62-32,867.78-9,438.58

Finding the Fourth Proportional to 21,917.62, 32,867.78 and 9,438.58

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Solution

The fourth proportional to 21,917.62, 32,867.78 and 9,438.58 is: 14,154.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,917.62 : 32,867.78 = 9,438.58 : x
  2. Step 2: Convert to fraction form
    21,917.62/32,867.78 = 9,438.58/x
  3. Step 3: Cross multiply
    21,917.62x = 32,867.78 × 9,438.58
  4. Step 4: Simplify right side
    21,917.62x = 310,225,170.95
  5. Step 5: Solve for x
    x = 310,225,170.95/21,917.62
  6. Step 6: Final answer
    x = 14,154.14

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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.