Home / 21,542.26-29,723.91-12,588.02

Finding the Fourth Proportional to 21,542.26, 29,723.91 and 12,588.02

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Solution

The fourth proportional to 21,542.26, 29,723.91 and 12,588.02 is: 17,368.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,542.26 : 29,723.91 = 12,588.02 : x
  2. Step 2: Convert to fraction form
    21,542.26/29,723.91 = 12,588.02/x
  3. Step 3: Cross multiply
    21,542.26x = 29,723.91 × 12,588.02
  4. Step 4: Simplify right side
    21,542.26x = 374,165,076.41
  5. Step 5: Solve for x
    x = 374,165,076.41/21,542.26
  6. Step 6: Final answer
    x = 17,368.89

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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.