Home / 19,695.20-27,179.40-10,742.73

Finding the Fourth Proportional to 19,695.20, 27,179.40 and 10,742.73

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Solution

The fourth proportional to 19,695.20, 27,179.40 and 10,742.73 is: 14,824.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,695.20 : 27,179.40 = 10,742.73 : x
  2. Step 2: Convert to fraction form
    19,695.20/27,179.40 = 10,742.73/x
  3. Step 3: Cross multiply
    19,695.20x = 27,179.40 × 10,742.73
  4. Step 4: Simplify right side
    19,695.20x = 291,980,833.70
  5. Step 5: Solve for x
    x = 291,980,833.70/19,695.20
  6. Step 6: Final answer
    x = 14,824.97

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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.