Home / 31,535.84-43,519.20-17,388.20

Finding the Fourth Proportional to 31,535.84, 43,519.20 and 17,388.20

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Solution

The fourth proportional to 31,535.84, 43,519.20 and 17,388.20 is: 23,995.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,535.84 : 43,519.20 = 17,388.20 : x
  2. Step 2: Convert to fraction form
    31,535.84/43,519.20 = 17,388.20/x
  3. Step 3: Cross multiply
    31,535.84x = 43,519.20 × 17,388.20
  4. Step 4: Simplify right side
    31,535.84x = 756,720,553.44
  5. Step 5: Solve for x
    x = 756,720,553.44/31,535.84
  6. Step 6: Final answer
    x = 23,995.57

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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.