Home / 28,922.15-43,385.85-11,147.10

Finding the Fourth Proportional to 28,922.15, 43,385.85 and 11,147.10

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Solution

The fourth proportional to 28,922.15, 43,385.85 and 11,147.10 is: 16,721.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,922.15 : 43,385.85 = 11,147.10 : x
  2. Step 2: Convert to fraction form
    28,922.15/43,385.85 = 11,147.10/x
  3. Step 3: Cross multiply
    28,922.15x = 43,385.85 × 11,147.10
  4. Step 4: Simplify right side
    28,922.15x = 483,626,408.54
  5. Step 5: Solve for x
    x = 483,626,408.54/28,922.15
  6. Step 6: Final answer
    x = 16,721.66

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1.5x scale

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.