Home / 28,654.88-42,982.62-8,664.55

Finding the Fourth Proportional to 28,654.88, 42,982.62 and 8,664.55

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Solution

The fourth proportional to 28,654.88, 42,982.62 and 8,664.55 is: 12,996.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,654.88 : 42,982.62 = 8,664.55 : x
  2. Step 2: Convert to fraction form
    28,654.88/42,982.62 = 8,664.55/x
  3. Step 3: Cross multiply
    28,654.88x = 42,982.62 × 8,664.55
  4. Step 4: Simplify right side
    28,654.88x = 372,425,060.12
  5. Step 5: Solve for x
    x = 372,425,060.12/28,654.88
  6. Step 6: Final answer
    x = 12,996.92

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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.