Home / 18,990.48-26,191.92-17,717.25

Finding the Fourth Proportional to 18,990.48, 26,191.92 and 17,717.25

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Solution

The fourth proportional to 18,990.48, 26,191.92 and 17,717.25 is: 24,435.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,990.48 : 26,191.92 = 17,717.25 : x
  2. Step 2: Convert to fraction form
    18,990.48/26,191.92 = 17,717.25/x
  3. Step 3: Cross multiply
    18,990.48x = 26,191.92 × 17,717.25
  4. Step 4: Simplify right side
    18,990.48x = 464,048,794.62
  5. Step 5: Solve for x
    x = 464,048,794.62/18,990.48
  6. Step 6: Final answer
    x = 24,435.86

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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.