Home / 22,839.80-31,519.00-12,768.44

Finding the Fourth Proportional to 22,839.80, 31,519.00 and 12,768.44

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Solution

The fourth proportional to 22,839.80, 31,519.00 and 12,768.44 is: 17,620.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,839.80 : 31,519.00 = 12,768.44 : x
  2. Step 2: Convert to fraction form
    22,839.80/31,519.00 = 12,768.44/x
  3. Step 3: Cross multiply
    22,839.80x = 31,519.00 × 12,768.44
  4. Step 4: Simplify right side
    22,839.80x = 402,448,282.81
  5. Step 5: Solve for x
    x = 402,448,282.81/22,839.80
  6. Step 6: Final answer
    x = 17,620.48

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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.