Home / 20,694.50-28,558.41-11,263.13

Finding the Fourth Proportional to 20,694.50, 28,558.41 and 11,263.13

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Solution

The fourth proportional to 20,694.50, 28,558.41 and 11,263.13 is: 15,543.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,694.50 : 28,558.41 = 11,263.13 : x
  2. Step 2: Convert to fraction form
    20,694.50/28,558.41 = 11,263.13/x
  3. Step 3: Cross multiply
    20,694.50x = 28,558.41 × 11,263.13
  4. Step 4: Simplify right side
    20,694.50x = 321,657,084.42
  5. Step 5: Solve for x
    x = 321,657,084.42/20,694.50
  6. Step 6: Final answer
    x = 15,543.12

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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.