Home / 18,220.74-27,302.32-13,757.28

Finding the Fourth Proportional to 18,220.74, 27,302.32 and 13,757.28

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Solution

The fourth proportional to 18,220.74, 27,302.32 and 13,757.28 is: 20,614.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,220.74 : 27,302.32 = 13,757.28 : x
  2. Step 2: Convert to fraction form
    18,220.74/27,302.32 = 13,757.28/x
  3. Step 3: Cross multiply
    18,220.74x = 27,302.32 × 13,757.28
  4. Step 4: Simplify right side
    18,220.74x = 375,605,660.89
  5. Step 5: Solve for x
    x = 375,605,660.89/18,220.74
  6. Step 6: Final answer
    x = 20,614.18

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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.