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Finding the Fourth Proportional to 32,691.60, 45,114.30 and 18,543.60

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Solution

The fourth proportional to 32,691.60, 45,114.30 and 18,543.60 is: 25,590.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,691.60 : 45,114.30 = 18,543.60 : x
  2. Step 2: Convert to fraction form
    32,691.60/45,114.30 = 18,543.60/x
  3. Step 3: Cross multiply
    32,691.60x = 45,114.30 × 18,543.60
  4. Step 4: Simplify right side
    32,691.60x = 836,581,533.48
  5. Step 5: Solve for x
    x = 836,581,533.48/32,691.60
  6. Step 6: Final answer
    x = 25,590.11

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