Home / 18,438.26-27,632.66-17,257.28

Finding the Fourth Proportional to 18,438.26, 27,632.66 and 17,257.28

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Solution

The fourth proportional to 18,438.26, 27,632.66 and 17,257.28 is: 25,862.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,438.26 : 27,632.66 = 17,257.28 : x
  2. Step 2: Convert to fraction form
    18,438.26/27,632.66 = 17,257.28/x
  3. Step 3: Cross multiply
    18,438.26x = 27,632.66 × 17,257.28
  4. Step 4: Simplify right side
    18,438.26x = 476,864,326.32
  5. Step 5: Solve for x
    x = 476,864,326.32/18,438.26
  6. Step 6: Final answer
    x = 25,862.77

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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.