Home / 18,019.40-27,025.05-11,822.90

Finding the Fourth Proportional to 18,019.40, 27,025.05 and 11,822.90

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Solution

The fourth proportional to 18,019.40, 27,025.05 and 11,822.90 is: 17,731.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,019.40 : 27,025.05 = 11,822.90 : x
  2. Step 2: Convert to fraction form
    18,019.40/27,025.05 = 11,822.90/x
  3. Step 3: Cross multiply
    18,019.40x = 27,025.05 × 11,822.90
  4. Step 4: Simplify right side
    18,019.40x = 319,514,463.65
  5. Step 5: Solve for x
    x = 319,514,463.65/18,019.40
  6. Step 6: Final answer
    x = 17,731.69

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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.