Home / 18,418.80-27,628.20-17,325.30

Finding the Fourth Proportional to 18,418.80, 27,628.20 and 17,325.30

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Solution

The fourth proportional to 18,418.80, 27,628.20 and 17,325.30 is: 25,987.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,418.80 : 27,628.20 = 17,325.30 : x
  2. Step 2: Convert to fraction form
    18,418.80/27,628.20 = 17,325.30/x
  3. Step 3: Cross multiply
    18,418.80x = 27,628.20 × 17,325.30
  4. Step 4: Simplify right side
    18,418.80x = 478,666,853.46
  5. Step 5: Solve for x
    x = 478,666,853.46/18,418.80
  6. Step 6: Final answer
    x = 25,987.95

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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.