Home / 28,772.18-43,143.68-13,176.44

Finding the Fourth Proportional to 28,772.18, 43,143.68 and 13,176.44

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Solution

The fourth proportional to 28,772.18, 43,143.68 and 13,176.44 is: 19,757.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,772.18 : 43,143.68 = 13,176.44 : x
  2. Step 2: Convert to fraction form
    28,772.18/43,143.68 = 13,176.44/x
  3. Step 3: Cross multiply
    28,772.18x = 43,143.68 × 13,176.44
  4. Step 4: Simplify right side
    28,772.18x = 568,480,110.90
  5. Step 5: Solve for x
    x = 568,480,110.90/28,772.18
  6. Step 6: Final answer
    x = 19,757.98

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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.