Home / 18,122.12-27,188.04-14,438.24

Finding the Fourth Proportional to 18,122.12, 27,188.04 and 14,438.24

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Solution

The fourth proportional to 18,122.12, 27,188.04 and 14,438.24 is: 21,661.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,122.12 : 27,188.04 = 14,438.24 : x
  2. Step 2: Convert to fraction form
    18,122.12/27,188.04 = 14,438.24/x
  3. Step 3: Cross multiply
    18,122.12x = 27,188.04 × 14,438.24
  4. Step 4: Simplify right side
    18,122.12x = 392,547,446.65
  5. Step 5: Solve for x
    x = 392,547,446.65/18,122.12
  6. Step 6: Final answer
    x = 21,661.23

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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.