Home / 47,888.73-71,815.82-20,188.89

Finding the Fourth Proportional to 47,888.73, 71,815.82 and 20,188.89

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Solution

The fourth proportional to 47,888.73, 71,815.82 and 20,188.89 is: 30,276.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,888.73 : 71,815.82 = 20,188.89 : x
  2. Step 2: Convert to fraction form
    47,888.73/71,815.82 = 20,188.89/x
  3. Step 3: Cross multiply
    47,888.73x = 71,815.82 × 20,188.89
  4. Step 4: Simplify right side
    47,888.73x = 1,449,881,589.30
  5. Step 5: Solve for x
    x = 1,449,881,589.30/47,888.73
  6. Step 6: Final answer
    x = 30,276.05

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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.