Home / 38,756.88-58,121.64-12,452.75

Finding the Fourth Proportional to 38,756.88, 58,121.64 and 12,452.75

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Solution

The fourth proportional to 38,756.88, 58,121.64 and 12,452.75 is: 18,674.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,756.88 : 58,121.64 = 12,452.75 : x
  2. Step 2: Convert to fraction form
    38,756.88/58,121.64 = 12,452.75/x
  3. Step 3: Cross multiply
    38,756.88x = 58,121.64 × 12,452.75
  4. Step 4: Simplify right side
    38,756.88x = 723,773,961.90
  5. Step 5: Solve for x
    x = 723,773,961.90/38,756.88
  6. Step 6: Final answer
    x = 18,674.72

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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.