Home / 20,694.93-28,559.13-11,263.50

Finding the Fourth Proportional to 20,694.93, 28,559.13 and 11,263.50

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Solution

The fourth proportional to 20,694.93, 28,559.13 and 11,263.50 is: 15,543.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,694.93 : 28,559.13 = 11,263.50 : x
  2. Step 2: Convert to fraction form
    20,694.93/28,559.13 = 11,263.50/x
  3. Step 3: Cross multiply
    20,694.93x = 28,559.13 × 11,263.50
  4. Step 4: Simplify right side
    20,694.93x = 321,675,760.76
  5. Step 5: Solve for x
    x = 321,675,760.76/20,694.93
  6. Step 6: Final answer
    x = 15,543.70

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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.