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Finding the Fourth Proportional to 22,158, 33,389.87 and 20,077.92

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Solution

The fourth proportional to 22,158, 33,389.87 and 20,077.92 is: 30,255.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,158 : 33,389.87 = 20,077.92 : x
  2. Step 2: Convert to fraction form
    22,158/33,389.87 = 20,077.92/x
  3. Step 3: Cross multiply
    22,158x = 33,389.87 × 20,077.92
  4. Step 4: Simplify right side
    22,158x = 670,399,038.28
  5. Step 5: Solve for x
    x = 670,399,038.28/22,158
  6. Step 6: Final answer
    x = 30,255.39

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.