Home / 29,634.46-40,876.85-20,678.69

Finding the Fourth Proportional to 29,634.46, 40,876.85 and 20,678.69

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Solution

The fourth proportional to 29,634.46, 40,876.85 and 20,678.69 is: 28,523.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,634.46 : 40,876.85 = 20,678.69 : x
  2. Step 2: Convert to fraction form
    29,634.46/40,876.85 = 20,678.69/x
  3. Step 3: Cross multiply
    29,634.46x = 40,876.85 × 20,678.69
  4. Step 4: Simplify right side
    29,634.46x = 845,279,863.22
  5. Step 5: Solve for x
    x = 845,279,863.22/29,634.46
  6. Step 6: Final answer
    x = 28,523.55

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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.