Home / 26,908.28-40,354.22-21,630.78

Finding the Fourth Proportional to 26,908.28, 40,354.22 and 21,630.78

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Solution

The fourth proportional to 26,908.28, 40,354.22 and 21,630.78 is: 32,439.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,908.28 : 40,354.22 = 21,630.78 : x
  2. Step 2: Convert to fraction form
    26,908.28/40,354.22 = 21,630.78/x
  3. Step 3: Cross multiply
    26,908.28x = 40,354.22 × 21,630.78
  4. Step 4: Simplify right side
    26,908.28x = 872,893,187.30
  5. Step 5: Solve for x
    x = 872,893,187.30/26,908.28
  6. Step 6: Final answer
    x = 32,439.57

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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.