Home / 28,979.20-43,497.60-14,204.80

Finding the Fourth Proportional to 28,979.20, 43,497.60 and 14,204.80

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Solution

The fourth proportional to 28,979.20, 43,497.60 and 14,204.80 is: 21,321.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,979.20 : 43,497.60 = 14,204.80 : x
  2. Step 2: Convert to fraction form
    28,979.20/43,497.60 = 14,204.80/x
  3. Step 3: Cross multiply
    28,979.20x = 43,497.60 × 14,204.80
  4. Step 4: Simplify right side
    28,979.20x = 617,874,708.48
  5. Step 5: Solve for x
    x = 617,874,708.48/28,979.20
  6. Step 6: Final answer
    x = 21,321.32

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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.