Home / 31,553.61-43,524.66-20,219.28

Finding the Fourth Proportional to 31,553.61, 43,524.66 and 20,219.28

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Solution

The fourth proportional to 31,553.61, 43,524.66 and 20,219.28 is: 27,890.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,553.61 : 43,524.66 = 20,219.28 : x
  2. Step 2: Convert to fraction form
    31,553.61/43,524.66 = 20,219.28/x
  3. Step 3: Cross multiply
    31,553.61x = 43,524.66 × 20,219.28
  4. Step 4: Simplify right side
    31,553.61x = 880,037,287.44
  5. Step 5: Solve for x
    x = 880,037,287.44/31,553.61
  6. Step 6: Final answer
    x = 27,890.23

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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.