Home / 45,340.90-67,944.39-21,939.46

Finding the Fourth Proportional to 45,340.90, 67,944.39 and 21,939.46

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Solution

The fourth proportional to 45,340.90, 67,944.39 and 21,939.46 is: 32,876.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,340.90 : 67,944.39 = 21,939.46 : x
  2. Step 2: Convert to fraction form
    45,340.90/67,944.39 = 21,939.46/x
  3. Step 3: Cross multiply
    45,340.90x = 67,944.39 × 21,939.46
  4. Step 4: Simplify right side
    45,340.90x = 1,490,663,226.63
  5. Step 5: Solve for x
    x = 1,490,663,226.63/45,340.90
  6. Step 6: Final answer
    x = 32,876.79

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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.