Home / 20,695.82-28,560.22-11,264.45

Finding the Fourth Proportional to 20,695.82, 28,560.22 and 11,264.45

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Solution

The fourth proportional to 20,695.82, 28,560.22 and 11,264.45 is: 15,544.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,695.82 : 28,560.22 = 11,264.45 : x
  2. Step 2: Convert to fraction form
    20,695.82/28,560.22 = 11,264.45/x
  3. Step 3: Cross multiply
    20,695.82x = 28,560.22 × 11,264.45
  4. Step 4: Simplify right side
    20,695.82x = 321,715,027.38
  5. Step 5: Solve for x
    x = 321,715,027.38/20,695.82
  6. Step 6: Final answer
    x = 15,544.93

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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.