Home / 43,908.20-65,862.30-20,215.70

Finding the Fourth Proportional to 43,908.20, 65,862.30 and 20,215.70

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Solution

The fourth proportional to 43,908.20, 65,862.30 and 20,215.70 is: 30,323.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,908.20 : 65,862.30 = 20,215.70 : x
  2. Step 2: Convert to fraction form
    43,908.20/65,862.30 = 20,215.70/x
  3. Step 3: Cross multiply
    43,908.20x = 65,862.30 × 20,215.70
  4. Step 4: Simplify right side
    43,908.20x = 1,331,452,498.11
  5. Step 5: Solve for x
    x = 1,331,452,498.11/43,908.20
  6. Step 6: Final answer
    x = 30,323.55

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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.