Home / 20,888.24-31,344.66-9,795.02

Finding the Fourth Proportional to 20,888.24, 31,344.66 and 9,795.02

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Solution

The fourth proportional to 20,888.24, 31,344.66 and 9,795.02 is: 14,698.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,888.24 : 31,344.66 = 9,795.02 : x
  2. Step 2: Convert to fraction form
    20,888.24/31,344.66 = 9,795.02/x
  3. Step 3: Cross multiply
    20,888.24x = 31,344.66 × 9,795.02
  4. Step 4: Simplify right side
    20,888.24x = 307,021,414.87
  5. Step 5: Solve for x
    x = 307,021,414.87/20,888.24
  6. Step 6: Final answer
    x = 14,698.29

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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.