Home / 33,251.01-45,879.70-21,156.30

Finding the Fourth Proportional to 33,251.01, 45,879.70 and 21,156.30

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Solution

The fourth proportional to 33,251.01, 45,879.70 and 21,156.30 is: 29,191.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,251.01 : 45,879.70 = 21,156.30 : x
  2. Step 2: Convert to fraction form
    33,251.01/45,879.70 = 21,156.30/x
  3. Step 3: Cross multiply
    33,251.01x = 45,879.70 × 21,156.30
  4. Step 4: Simplify right side
    33,251.01x = 970,644,697.11
  5. Step 5: Solve for x
    x = 970,644,697.11/33,251.01
  6. Step 6: Final answer
    x = 29,191.44

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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.