Home / 21,357.27-32,021.19-11,486.61

Finding the Fourth Proportional to 21,357.27, 32,021.19 and 11,486.61

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Solution

The fourth proportional to 21,357.27, 32,021.19 and 11,486.61 is: 17,222.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,357.27 : 32,021.19 = 11,486.61 : x
  2. Step 2: Convert to fraction form
    21,357.27/32,021.19 = 11,486.61/x
  3. Step 3: Cross multiply
    21,357.27x = 32,021.19 × 11,486.61
  4. Step 4: Simplify right side
    21,357.27x = 367,814,921.27
  5. Step 5: Solve for x
    x = 367,814,921.27/21,357.27
  6. Step 6: Final answer
    x = 17,222.00

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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.