Home / 20,695.88-28,560.30-11,264.52

Finding the Fourth Proportional to 20,695.88, 28,560.30 and 11,264.52

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Solution

The fourth proportional to 20,695.88, 28,560.30 and 11,264.52 is: 15,545.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,695.88 : 28,560.30 = 11,264.52 : x
  2. Step 2: Convert to fraction form
    20,695.88/28,560.30 = 11,264.52/x
  3. Step 3: Cross multiply
    20,695.88x = 28,560.30 × 11,264.52
  4. Step 4: Simplify right side
    20,695.88x = 321,718,070.56
  5. Step 5: Solve for x
    x = 321,718,070.56/20,695.88
  6. Step 6: Final answer
    x = 15,545.03

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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.