Home / 38,770.28-58,156.91-12,118.73

Finding the Fourth Proportional to 38,770.28, 58,156.91 and 12,118.73

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Solution

The fourth proportional to 38,770.28, 58,156.91 and 12,118.73 is: 18,178.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,770.28 : 58,156.91 = 12,118.73 : x
  2. Step 2: Convert to fraction form
    38,770.28/58,156.91 = 12,118.73/x
  3. Step 3: Cross multiply
    38,770.28x = 58,156.91 × 12,118.73
  4. Step 4: Simplify right side
    38,770.28x = 704,787,538.55
  5. Step 5: Solve for x
    x = 704,787,538.55/38,770.28
  6. Step 6: Final answer
    x = 18,178.55

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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.