Home / 20,695.06-28,559.33-11,263.69

Finding the Fourth Proportional to 20,695.06, 28,559.33 and 11,263.69

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Solution

The fourth proportional to 20,695.06, 28,559.33 and 11,263.69 is: 15,543.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,695.06 : 28,559.33 = 11,263.69 : x
  2. Step 2: Convert to fraction form
    20,695.06/28,559.33 = 11,263.69/x
  3. Step 3: Cross multiply
    20,695.06x = 28,559.33 × 11,263.69
  4. Step 4: Simplify right side
    20,695.06x = 321,683,439.73
  5. Step 5: Solve for x
    x = 321,683,439.73/20,695.06
  6. Step 6: Final answer
    x = 15,543.97

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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.