Home / 28,979.60-43,448.13-9,246.78

Finding the Fourth Proportional to 28,979.60, 43,448.13 and 9,246.78

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Solution

The fourth proportional to 28,979.60, 43,448.13 and 9,246.78 is: 13,863.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,979.60 : 43,448.13 = 9,246.78 : x
  2. Step 2: Convert to fraction form
    28,979.60/43,448.13 = 9,246.78/x
  3. Step 3: Cross multiply
    28,979.60x = 43,448.13 × 9,246.78
  4. Step 4: Simplify right side
    28,979.60x = 401,755,299.52
  5. Step 5: Solve for x
    x = 401,755,299.52/28,979.60
  6. Step 6: Final answer
    x = 13,863.39

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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.