Home / 21,442.46-32,165.87-7,400.66

Finding the Fourth Proportional to 21,442.46, 32,165.87 and 7,400.66

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Solution

The fourth proportional to 21,442.46, 32,165.87 and 7,400.66 is: 11,101.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,442.46 : 32,165.87 = 7,400.66 : x
  2. Step 2: Convert to fraction form
    21,442.46/32,165.87 = 7,400.66/x
  3. Step 3: Cross multiply
    21,442.46x = 32,165.87 × 7,400.66
  4. Step 4: Simplify right side
    21,442.46x = 238,048,469.64
  5. Step 5: Solve for x
    x = 238,048,469.64/21,442.46
  6. Step 6: Final answer
    x = 11,101.74

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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.