Home / 42,524.40-63,747.15-18,819.34

Finding the Fourth Proportional to 42,524.40, 63,747.15 and 18,819.34

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Solution

The fourth proportional to 42,524.40, 63,747.15 and 18,819.34 is: 28,211.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,524.40 : 63,747.15 = 18,819.34 : x
  2. Step 2: Convert to fraction form
    42,524.40/63,747.15 = 18,819.34/x
  3. Step 3: Cross multiply
    42,524.40x = 63,747.15 × 18,819.34
  4. Step 4: Simplify right side
    42,524.40x = 1,199,679,289.88
  5. Step 5: Solve for x
    x = 1,199,679,289.88/42,524.40
  6. Step 6: Final answer
    x = 28,211.55

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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.