Home / 18,279.73-25,223.32-10,321.80

Finding the Fourth Proportional to 18,279.73, 25,223.32 and 10,321.80

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Solution

The fourth proportional to 18,279.73, 25,223.32 and 10,321.80 is: 14,242.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,279.73 : 25,223.32 = 10,321.80 : x
  2. Step 2: Convert to fraction form
    18,279.73/25,223.32 = 10,321.80/x
  3. Step 3: Cross multiply
    18,279.73x = 25,223.32 × 10,321.80
  4. Step 4: Simplify right side
    18,279.73x = 260,350,064.38
  5. Step 5: Solve for x
    x = 260,350,064.38/18,279.73
  6. Step 6: Final answer
    x = 14,242.56

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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.