Home / 19,220.16-28,834.14-8,126.82

Finding the Fourth Proportional to 19,220.16, 28,834.14 and 8,126.82

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Solution

The fourth proportional to 19,220.16, 28,834.14 and 8,126.82 is: 12,191.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,220.16 : 28,834.14 = 8,126.82 : x
  2. Step 2: Convert to fraction form
    19,220.16/28,834.14 = 8,126.82/x
  3. Step 3: Cross multiply
    19,220.16x = 28,834.14 × 8,126.82
  4. Step 4: Simplify right side
    19,220.16x = 234,329,865.63
  5. Step 5: Solve for x
    x = 234,329,865.63/19,220.16
  6. Step 6: Final answer
    x = 12,191.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.