Home / 21,390.20-32,084.22-7,351.52

Finding the Fourth Proportional to 21,390.20, 32,084.22 and 7,351.52

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Solution

The fourth proportional to 21,390.20, 32,084.22 and 7,351.52 is: 11,026.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,390.20 : 32,084.22 = 7,351.52 : x
  2. Step 2: Convert to fraction form
    21,390.20/32,084.22 = 7,351.52/x
  3. Step 3: Cross multiply
    21,390.20x = 32,084.22 × 7,351.52
  4. Step 4: Simplify right side
    21,390.20x = 235,867,785.01
  5. Step 5: Solve for x
    x = 235,867,785.01/21,390.20
  6. Step 6: Final answer
    x = 11,026.91

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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.