Home / 19,655.56-27,104.30-15,180.04

Finding the Fourth Proportional to 19,655.56, 27,104.30 and 15,180.04

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Solution

The fourth proportional to 19,655.56, 27,104.30 and 15,180.04 is: 20,932.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,655.56 : 27,104.30 = 15,180.04 : x
  2. Step 2: Convert to fraction form
    19,655.56/27,104.30 = 15,180.04/x
  3. Step 3: Cross multiply
    19,655.56x = 27,104.30 × 15,180.04
  4. Step 4: Simplify right side
    19,655.56x = 411,444,358.17
  5. Step 5: Solve for x
    x = 411,444,358.17/19,655.56
  6. Step 6: Final answer
    x = 20,932.72

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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.