Home / 21,132.71-29,164.04-11,701.27

Finding the Fourth Proportional to 21,132.71, 29,164.04 and 11,701.27

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Solution

The fourth proportional to 21,132.71, 29,164.04 and 11,701.27 is: 16,148.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,132.71 : 29,164.04 = 11,701.27 : x
  2. Step 2: Convert to fraction form
    21,132.71/29,164.04 = 11,701.27/x
  3. Step 3: Cross multiply
    21,132.71x = 29,164.04 × 11,701.27
  4. Step 4: Simplify right side
    21,132.71x = 341,256,262.67
  5. Step 5: Solve for x
    x = 341,256,262.67/21,132.71
  6. Step 6: Final answer
    x = 16,148.25

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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.