Home / 28,408.20-42,555.36-17,157

Finding the Fourth Proportional to 28,408.20, 42,555.36 and 17,157

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Solution

The fourth proportional to 28,408.20, 42,555.36 and 17,157 is: 25,701.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,408.20 : 42,555.36 = 17,157 : x
  2. Step 2: Convert to fraction form
    28,408.20/42,555.36 = 17,157/x
  3. Step 3: Cross multiply
    28,408.20x = 42,555.36 × 17,157
  4. Step 4: Simplify right side
    28,408.20x = 730,122,311.52
  5. Step 5: Solve for x
    x = 730,122,311.52/28,408.20
  6. Step 6: Final answer
    x = 25,701.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.