Home / 21,391.27-32,086.36-5,808.49

Finding the Fourth Proportional to 21,391.27, 32,086.36 and 5,808.49

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Solution

The fourth proportional to 21,391.27, 32,086.36 and 5,808.49 is: 8,712.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,391.27 : 32,086.36 = 5,808.49 : x
  2. Step 2: Convert to fraction form
    21,391.27/32,086.36 = 5,808.49/x
  3. Step 3: Cross multiply
    21,391.27x = 32,086.36 × 5,808.49
  4. Step 4: Simplify right side
    21,391.27x = 186,373,301.20
  5. Step 5: Solve for x
    x = 186,373,301.20/21,391.27
  6. Step 6: Final answer
    x = 8,712.59

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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.