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Finding the Fourth Proportional to 26,863.80, 40,295.70 and 21,334.20

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Solution

The fourth proportional to 26,863.80, 40,295.70 and 21,334.20 is: 32,001.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,863.80 : 40,295.70 = 21,334.20 : x
  2. Step 2: Convert to fraction form
    26,863.80/40,295.70 = 21,334.20/x
  3. Step 3: Cross multiply
    26,863.80x = 40,295.70 × 21,334.20
  4. Step 4: Simplify right side
    26,863.80x = 859,676,522.94
  5. Step 5: Solve for x
    x = 859,676,522.94/26,863.80
  6. Step 6: Final answer
    x = 32,001.30

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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.