Home / 13,968.32-20,959.68-13,861.76

Finding the Fourth Proportional to 13,968.32, 20,959.68 and 13,861.76

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Solution

The fourth proportional to 13,968.32, 20,959.68 and 13,861.76 is: 20,799.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,968.32 : 20,959.68 = 13,861.76 : x
  2. Step 2: Convert to fraction form
    13,968.32/20,959.68 = 13,861.76/x
  3. Step 3: Cross multiply
    13,968.32x = 20,959.68 × 13,861.76
  4. Step 4: Simplify right side
    13,968.32x = 290,538,053.84
  5. Step 5: Solve for x
    x = 290,538,053.84/13,968.32
  6. Step 6: Final answer
    x = 20,799.79

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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.