Home / 43,555.20-65,338.56-13,963.20

Finding the Fourth Proportional to 43,555.20, 65,338.56 and 13,963.20

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Solution

The fourth proportional to 43,555.20, 65,338.56 and 13,963.20 is: 20,946.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,555.20 : 65,338.56 = 13,963.20 : x
  2. Step 2: Convert to fraction form
    43,555.20/65,338.56 = 13,963.20/x
  3. Step 3: Cross multiply
    43,555.20x = 65,338.56 × 13,963.20
  4. Step 4: Simplify right side
    43,555.20x = 912,335,380.99
  5. Step 5: Solve for x
    x = 912,335,380.99/43,555.20
  6. Step 6: Final answer
    x = 20,946.65

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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.