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Finding the Fourth Proportional to 32,439.40, 48,659.10 and 28,810.60

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Solution

The fourth proportional to 32,439.40, 48,659.10 and 28,810.60 is: 43,215.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,439.40 : 48,659.10 = 28,810.60 : x
  2. Step 2: Convert to fraction form
    32,439.40/48,659.10 = 28,810.60/x
  3. Step 3: Cross multiply
    32,439.40x = 48,659.10 × 28,810.60
  4. Step 4: Simplify right side
    32,439.40x = 1,401,897,866.46
  5. Step 5: Solve for x
    x = 1,401,897,866.46/32,439.40
  6. Step 6: Final answer
    x = 43,215.90

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.