Home / 28,964.22-39,971.24-16,388.97

Finding the Fourth Proportional to 28,964.22, 39,971.24 and 16,388.97

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Solution

The fourth proportional to 28,964.22, 39,971.24 and 16,388.97 is: 22,617.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,964.22 : 39,971.24 = 16,388.97 : x
  2. Step 2: Convert to fraction form
    28,964.22/39,971.24 = 16,388.97/x
  3. Step 3: Cross multiply
    28,964.22x = 39,971.24 × 16,388.97
  4. Step 4: Simplify right side
    28,964.22x = 655,087,453.22
  5. Step 5: Solve for x
    x = 655,087,453.22/28,964.22
  6. Step 6: Final answer
    x = 22,617.13

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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.