Home / 26,821.80-40,232.70-21,292.20

Finding the Fourth Proportional to 26,821.80, 40,232.70 and 21,292.20

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Solution

The fourth proportional to 26,821.80, 40,232.70 and 21,292.20 is: 31,938.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,821.80 : 40,232.70 = 21,292.20 : x
  2. Step 2: Convert to fraction form
    26,821.80/40,232.70 = 21,292.20/x
  3. Step 3: Cross multiply
    26,821.80x = 40,232.70 × 21,292.20
  4. Step 4: Simplify right side
    26,821.80x = 856,642,694.94
  5. Step 5: Solve for x
    x = 856,642,694.94/26,821.80
  6. Step 6: Final answer
    x = 31,938.30

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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.