Home / 43,258.95-64,882.80-13,679.76

Finding the Fourth Proportional to 43,258.95, 64,882.80 and 13,679.76

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Solution

The fourth proportional to 43,258.95, 64,882.80 and 13,679.76 is: 20,517.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,258.95 : 64,882.80 = 13,679.76 : x
  2. Step 2: Convert to fraction form
    43,258.95/64,882.80 = 13,679.76/x
  3. Step 3: Cross multiply
    43,258.95x = 64,882.80 × 13,679.76
  4. Step 4: Simplify right side
    43,258.95x = 887,581,132.13
  5. Step 5: Solve for x
    x = 887,581,132.13/43,258.95
  6. Step 6: Final answer
    x = 20,517.86

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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.