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Finding the Fourth Proportional to 32,494.40, 44,808 and 21,155.20

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Solution

The fourth proportional to 32,494.40, 44,808 and 21,155.20 is: 29,171.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,494.40 : 44,808 = 21,155.20 : x
  2. Step 2: Convert to fraction form
    32,494.40/44,808 = 21,155.20/x
  3. Step 3: Cross multiply
    32,494.40x = 44,808 × 21,155.20
  4. Step 4: Simplify right side
    32,494.40x = 947,922,201.60
  5. Step 5: Solve for x
    x = 947,922,201.60/32,494.40
  6. Step 6: Final answer
    x = 29,171.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.