Home / 20,695.32-28,559.52-11,263.86

Finding the Fourth Proportional to 20,695.32, 28,559.52 and 11,263.86

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Solution

The fourth proportional to 20,695.32, 28,559.52 and 11,263.86 is: 15,544.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,695.32 : 28,559.52 = 11,263.86 : x
  2. Step 2: Convert to fraction form
    20,695.32/28,559.52 = 11,263.86/x
  3. Step 3: Cross multiply
    20,695.32x = 28,559.52 × 11,263.86
  4. Step 4: Simplify right side
    20,695.32x = 321,690,434.95
  5. Step 5: Solve for x
    x = 321,690,434.95/20,695.32
  6. Step 6: Final answer
    x = 15,544.12

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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.