Home / 29,134.49-40,212.24-20,627.78

Finding the Fourth Proportional to 29,134.49, 40,212.24 and 20,627.78

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Solution

The fourth proportional to 29,134.49, 40,212.24 and 20,627.78 is: 28,471.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,134.49 : 40,212.24 = 20,627.78 : x
  2. Step 2: Convert to fraction form
    29,134.49/40,212.24 = 20,627.78/x
  3. Step 3: Cross multiply
    29,134.49x = 40,212.24 × 20,627.78
  4. Step 4: Simplify right side
    29,134.49x = 829,489,240.03
  5. Step 5: Solve for x
    x = 829,489,240.03/29,134.49
  6. Step 6: Final answer
    x = 28,471.04

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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.