Home / 21,233.18-29,301.03-13,679.82

Finding the Fourth Proportional to 21,233.18, 29,301.03 and 13,679.82

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Solution

The fourth proportional to 21,233.18, 29,301.03 and 13,679.82 is: 18,877.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,233.18 : 29,301.03 = 13,679.82 : x
  2. Step 2: Convert to fraction form
    21,233.18/29,301.03 = 13,679.82/x
  3. Step 3: Cross multiply
    21,233.18x = 29,301.03 × 13,679.82
  4. Step 4: Simplify right side
    21,233.18x = 400,832,816.21
  5. Step 5: Solve for x
    x = 400,832,816.21/21,233.18
  6. Step 6: Final answer
    x = 18,877.67

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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.