Home / 33,045.59-45,591.81-21,115.91

Finding the Fourth Proportional to 33,045.59, 45,591.81 and 21,115.91

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Solution

The fourth proportional to 33,045.59, 45,591.81 and 21,115.91 is: 29,132.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,045.59 : 45,591.81 = 21,115.91 : x
  2. Step 2: Convert to fraction form
    33,045.59/45,591.81 = 21,115.91/x
  3. Step 3: Cross multiply
    33,045.59x = 45,591.81 × 21,115.91
  4. Step 4: Simplify right side
    33,045.59x = 962,712,556.70
  5. Step 5: Solve for x
    x = 962,712,556.70/33,045.59
  6. Step 6: Final answer
    x = 29,132.86

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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.