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Finding the Fourth Proportional to 22,695.80, 34,101.30 and 20,161.40

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Solution

The fourth proportional to 22,695.80, 34,101.30 and 20,161.40 is: 30,293.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,695.80 : 34,101.30 = 20,161.40 : x
  2. Step 2: Convert to fraction form
    22,695.80/34,101.30 = 20,161.40/x
  3. Step 3: Cross multiply
    22,695.80x = 34,101.30 × 20,161.40
  4. Step 4: Simplify right side
    22,695.80x = 687,529,949.82
  5. Step 5: Solve for x
    x = 687,529,949.82/22,695.80
  6. Step 6: Final answer
    x = 30,293.27

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1.5x scale

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.