Home / 28,731.85-39,649.16-17,408.05

Finding the Fourth Proportional to 28,731.85, 39,649.16 and 17,408.05

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Solution

The fourth proportional to 28,731.85, 39,649.16 and 17,408.05 is: 24,022.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,731.85 : 39,649.16 = 17,408.05 : x
  2. Step 2: Convert to fraction form
    28,731.85/39,649.16 = 17,408.05/x
  3. Step 3: Cross multiply
    28,731.85x = 39,649.16 × 17,408.05
  4. Step 4: Simplify right side
    28,731.85x = 690,214,472.70
  5. Step 5: Solve for x
    x = 690,214,472.70/28,731.85
  6. Step 6: Final answer
    x = 24,022.63

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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.