Home / 26,250.80-39,376.20-13,809.20

Finding the Fourth Proportional to 26,250.80, 39,376.20 and 13,809.20

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Solution

The fourth proportional to 26,250.80, 39,376.20 and 13,809.20 is: 20,713.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,250.80 : 39,376.20 = 13,809.20 : x
  2. Step 2: Convert to fraction form
    26,250.80/39,376.20 = 13,809.20/x
  3. Step 3: Cross multiply
    26,250.80x = 39,376.20 × 13,809.20
  4. Step 4: Simplify right side
    26,250.80x = 543,753,821.04
  5. Step 5: Solve for x
    x = 543,753,821.04/26,250.80
  6. Step 6: Final answer
    x = 20,713.80

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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.