Home / 20,144.24-27,809.16-12,594.78

Finding the Fourth Proportional to 20,144.24, 27,809.16 and 12,594.78

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Solution

The fourth proportional to 20,144.24, 27,809.16 and 12,594.78 is: 17,387.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,144.24 : 27,809.16 = 12,594.78 : x
  2. Step 2: Convert to fraction form
    20,144.24/27,809.16 = 12,594.78/x
  3. Step 3: Cross multiply
    20,144.24x = 27,809.16 × 12,594.78
  4. Step 4: Simplify right side
    20,144.24x = 350,250,252.18
  5. Step 5: Solve for x
    x = 350,250,252.18/20,144.24
  6. Step 6: Final answer
    x = 17,387.12

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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.