Home / 28,972.28-39,983.94-16,224.82

Finding the Fourth Proportional to 28,972.28, 39,983.94 and 16,224.82

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Solution

The fourth proportional to 28,972.28, 39,983.94 and 16,224.82 is: 22,391.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,972.28 : 39,983.94 = 16,224.82 : x
  2. Step 2: Convert to fraction form
    28,972.28/39,983.94 = 16,224.82/x
  3. Step 3: Cross multiply
    28,972.28x = 39,983.94 × 16,224.82
  4. Step 4: Simplify right side
    28,972.28x = 648,732,229.39
  5. Step 5: Solve for x
    x = 648,732,229.39/28,972.28
  6. Step 6: Final answer
    x = 22,391.48

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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.