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Finding the Fourth Proportional to 28,777.62, 43,166.19 and 8,001.06

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Solution

The fourth proportional to 28,777.62, 43,166.19 and 8,001.06 is: 12,001.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,777.62 : 43,166.19 = 8,001.06 : x
  2. Step 2: Convert to fraction form
    28,777.62/43,166.19 = 8,001.06/x
  3. Step 3: Cross multiply
    28,777.62x = 43,166.19 × 8,001.06
  4. Step 4: Simplify right side
    28,777.62x = 345,375,276.16
  5. Step 5: Solve for x
    x = 345,375,276.16/28,777.62
  6. Step 6: Final answer
    x = 12,001.52

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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.