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Finding the Fourth Proportional to 32,670.43, 48,999.78 and 8,654.89

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Solution

The fourth proportional to 32,670.43, 48,999.78 and 8,654.89 is: 12,980.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,670.43 : 48,999.78 = 8,654.89 : x
  2. Step 2: Convert to fraction form
    32,670.43/48,999.78 = 8,654.89/x
  3. Step 3: Cross multiply
    32,670.43x = 48,999.78 × 8,654.89
  4. Step 4: Simplify right side
    32,670.43x = 424,087,705.92
  5. Step 5: Solve for x
    x = 424,087,705.92/32,670.43
  6. Step 6: Final answer
    x = 12,980.78

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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.