Home / 28,531.36-39,372.16-15,958.52

Finding the Fourth Proportional to 28,531.36, 39,372.16 and 15,958.52

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Solution

The fourth proportional to 28,531.36, 39,372.16 and 15,958.52 is: 22,022.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,531.36 : 39,372.16 = 15,958.52 : x
  2. Step 2: Convert to fraction form
    28,531.36/39,372.16 = 15,958.52/x
  3. Step 3: Cross multiply
    28,531.36x = 39,372.16 × 15,958.52
  4. Step 4: Simplify right side
    28,531.36x = 628,321,402.80
  5. Step 5: Solve for x
    x = 628,321,402.80/28,531.36
  6. Step 6: Final answer
    x = 22,022.13

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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.