Home / 18,324.30-25,296.75-15,329.10

Finding the Fourth Proportional to 18,324.30, 25,296.75 and 15,329.10

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Solution

The fourth proportional to 18,324.30, 25,296.75 and 15,329.10 is: 21,161.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,324.30 : 25,296.75 = 15,329.10 : x
  2. Step 2: Convert to fraction form
    18,324.30/25,296.75 = 15,329.10/x
  3. Step 3: Cross multiply
    18,324.30x = 25,296.75 × 15,329.10
  4. Step 4: Simplify right side
    18,324.30x = 387,776,410.43
  5. Step 5: Solve for x
    x = 387,776,410.43/18,324.30
  6. Step 6: Final answer
    x = 21,161.87

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Half scale
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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.