Home / 47,775.90-71,663.85-18,207.42

Finding the Fourth Proportional to 47,775.90, 71,663.85 and 18,207.42

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Solution

The fourth proportional to 47,775.90, 71,663.85 and 18,207.42 is: 27,311.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,775.90 : 71,663.85 = 18,207.42 : x
  2. Step 2: Convert to fraction form
    47,775.90/71,663.85 = 18,207.42/x
  3. Step 3: Cross multiply
    47,775.90x = 71,663.85 × 18,207.42
  4. Step 4: Simplify right side
    47,775.90x = 1,304,813,815.77
  5. Step 5: Solve for x
    x = 1,304,813,815.77/47,775.90
  6. Step 6: Final answer
    x = 27,311.13

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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.