Home / 43,972.20-65,958.30-20,279.70

Finding the Fourth Proportional to 43,972.20, 65,958.30 and 20,279.70

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Solution

The fourth proportional to 43,972.20, 65,958.30 and 20,279.70 is: 30,419.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,972.20 : 65,958.30 = 20,279.70 : x
  2. Step 2: Convert to fraction form
    43,972.20/65,958.30 = 20,279.70/x
  3. Step 3: Cross multiply
    43,972.20x = 65,958.30 × 20,279.70
  4. Step 4: Simplify right side
    43,972.20x = 1,337,614,536.51
  5. Step 5: Solve for x
    x = 1,337,614,536.51/43,972.20
  6. Step 6: Final answer
    x = 30,419.55

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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.