Home / 20,695.95-28,559.52-11,264.31

Finding the Fourth Proportional to 20,695.95, 28,559.52 and 11,264.31

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Solution

The fourth proportional to 20,695.95, 28,559.52 and 11,264.31 is: 15,544.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,695.95 : 28,559.52 = 11,264.31 : x
  2. Step 2: Convert to fraction form
    20,695.95/28,559.52 = 11,264.31/x
  3. Step 3: Cross multiply
    20,695.95x = 28,559.52 × 11,264.31
  4. Step 4: Simplify right side
    20,695.95x = 321,703,286.73
  5. Step 5: Solve for x
    x = 321,703,286.73/20,695.95
  6. Step 6: Final answer
    x = 15,544.26

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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.