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Finding the Fourth Proportional to 32,820.40, 49,230.60 and 9,127.90

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Solution

The fourth proportional to 32,820.40, 49,230.60 and 9,127.90 is: 13,691.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,820.40 : 49,230.60 = 9,127.90 : x
  2. Step 2: Convert to fraction form
    32,820.40/49,230.60 = 9,127.90/x
  3. Step 3: Cross multiply
    32,820.40x = 49,230.60 × 9,127.90
  4. Step 4: Simplify right side
    32,820.40x = 449,371,993.74
  5. Step 5: Solve for x
    x = 449,371,993.74/32,820.40
  6. Step 6: Final answer
    x = 13,691.85

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1.5x scale

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.