Home / 18,321.23-27,501.28-17,388.11

Finding the Fourth Proportional to 18,321.23, 27,501.28 and 17,388.11

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Solution

The fourth proportional to 18,321.23, 27,501.28 and 17,388.11 is: 26,100.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,321.23 : 27,501.28 = 17,388.11 : x
  2. Step 2: Convert to fraction form
    18,321.23/27,501.28 = 17,388.11/x
  3. Step 3: Cross multiply
    18,321.23x = 27,501.28 × 17,388.11
  4. Step 4: Simplify right side
    18,321.23x = 478,195,100.80
  5. Step 5: Solve for x
    x = 478,195,100.80/18,321.23
  6. Step 6: Final answer
    x = 26,100.61

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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.