Home / 19,932.68-27,507.48-12,861.56

Finding the Fourth Proportional to 19,932.68, 27,507.48 and 12,861.56

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Solution

The fourth proportional to 19,932.68, 27,507.48 and 12,861.56 is: 17,749.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,932.68 : 27,507.48 = 12,861.56 : x
  2. Step 2: Convert to fraction form
    19,932.68/27,507.48 = 12,861.56/x
  3. Step 3: Cross multiply
    19,932.68x = 27,507.48 × 12,861.56
  4. Step 4: Simplify right side
    19,932.68x = 353,789,104.47
  5. Step 5: Solve for x
    x = 353,789,104.47/19,932.68
  6. Step 6: Final answer
    x = 17,749.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.