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Finding the Fourth Proportional to 32,121.88, 48,197.40 and 18,999.88

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Solution

The fourth proportional to 32,121.88, 48,197.40 and 18,999.88 is: 28,508.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,121.88 : 48,197.40 = 18,999.88 : x
  2. Step 2: Convert to fraction form
    32,121.88/48,197.40 = 18,999.88/x
  3. Step 3: Cross multiply
    32,121.88x = 48,197.40 × 18,999.88
  4. Step 4: Simplify right side
    32,121.88x = 915,744,816.31
  5. Step 5: Solve for x
    x = 915,744,816.31/32,121.88
  6. Step 6: Final answer
    x = 28,508.44

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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.