Home / 18,324.29-25,265.36-15,486.66

Finding the Fourth Proportional to 18,324.29, 25,265.36 and 15,486.66

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Solution

The fourth proportional to 18,324.29, 25,265.36 and 15,486.66 is: 21,352.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,324.29 : 25,265.36 = 15,486.66 : x
  2. Step 2: Convert to fraction form
    18,324.29/25,265.36 = 15,486.66/x
  3. Step 3: Cross multiply
    18,324.29x = 25,265.36 × 15,486.66
  4. Step 4: Simplify right side
    18,324.29x = 391,275,962.66
  5. Step 5: Solve for x
    x = 391,275,962.66/18,324.29
  6. Step 6: Final answer
    x = 21,352.86

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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.