Home / 41,130.20-61,695.30-21,447.20

Finding the Fourth Proportional to 41,130.20, 61,695.30 and 21,447.20

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Solution

The fourth proportional to 41,130.20, 61,695.30 and 21,447.20 is: 32,170.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,130.20 : 61,695.30 = 21,447.20 : x
  2. Step 2: Convert to fraction form
    41,130.20/61,695.30 = 21,447.20/x
  3. Step 3: Cross multiply
    41,130.20x = 61,695.30 × 21,447.20
  4. Step 4: Simplify right side
    41,130.20x = 1,323,191,438.16
  5. Step 5: Solve for x
    x = 1,323,191,438.16/41,130.20
  6. Step 6: Final answer
    x = 32,170.80

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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.