Home / 33,109.62-45,691.28-18,205.62

Finding the Fourth Proportional to 33,109.62, 45,691.28 and 18,205.62

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Solution

The fourth proportional to 33,109.62, 45,691.28 and 18,205.62 is: 25,123.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,109.62 : 45,691.28 = 18,205.62 : x
  2. Step 2: Convert to fraction form
    33,109.62/45,691.28 = 18,205.62/x
  3. Step 3: Cross multiply
    33,109.62x = 45,691.28 × 18,205.62
  4. Step 4: Simplify right side
    33,109.62x = 831,838,080.99
  5. Step 5: Solve for x
    x = 831,838,080.99/33,109.62
  6. Step 6: Final answer
    x = 25,123.76

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1.5x scale

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.