Home / 17,939.60-24,743.16-10,857.20

Finding the Fourth Proportional to 17,939.60, 24,743.16 and 10,857.20

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Solution

The fourth proportional to 17,939.60, 24,743.16 and 10,857.20 is: 14,974.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,939.60 : 24,743.16 = 10,857.20 : x
  2. Step 2: Convert to fraction form
    17,939.60/24,743.16 = 10,857.20/x
  3. Step 3: Cross multiply
    17,939.60x = 24,743.16 × 10,857.20
  4. Step 4: Simplify right side
    17,939.60x = 268,641,436.75
  5. Step 5: Solve for x
    x = 268,641,436.75/17,939.60
  6. Step 6: Final answer
    x = 14,974.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.