Home / 43,261.28-64,891.52-13,679.13

Finding the Fourth Proportional to 43,261.28, 64,891.52 and 13,679.13

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Solution

The fourth proportional to 43,261.28, 64,891.52 and 13,679.13 is: 20,518.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,261.28 : 64,891.52 = 13,679.13 : x
  2. Step 2: Convert to fraction form
    43,261.28/64,891.52 = 13,679.13/x
  3. Step 3: Cross multiply
    43,261.28x = 64,891.52 × 13,679.13
  4. Step 4: Simplify right side
    43,261.28x = 887,659,469.58
  5. Step 5: Solve for x
    x = 887,659,469.58/43,261.28
  6. Step 6: Final answer
    x = 20,518.57

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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.