Home / 21,998.76-30,351.29-13,492.14

Finding the Fourth Proportional to 21,998.76, 30,351.29 and 13,492.14

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Solution

The fourth proportional to 21,998.76, 30,351.29 and 13,492.14 is: 18,614.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,998.76 : 30,351.29 = 13,492.14 : x
  2. Step 2: Convert to fraction form
    21,998.76/30,351.29 = 13,492.14/x
  3. Step 3: Cross multiply
    21,998.76x = 30,351.29 × 13,492.14
  4. Step 4: Simplify right side
    21,998.76x = 409,503,786.40
  5. Step 5: Solve for x
    x = 409,503,786.40/21,998.76
  6. Step 6: Final answer
    x = 18,614.86

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Double scale
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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.