Home / 28,876.20-43,314.48-9,154.80

Finding the Fourth Proportional to 28,876.20, 43,314.48 and 9,154.80

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Solution

The fourth proportional to 28,876.20, 43,314.48 and 9,154.80 is: 13,732.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,876.20 : 43,314.48 = 9,154.80 : x
  2. Step 2: Convert to fraction form
    28,876.20/43,314.48 = 9,154.80/x
  3. Step 3: Cross multiply
    28,876.20x = 43,314.48 × 9,154.80
  4. Step 4: Simplify right side
    28,876.20x = 396,535,401.50
  5. Step 5: Solve for x
    x = 396,535,401.50/28,876.20
  6. Step 6: Final answer
    x = 13,732.26

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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.