Home / 21,195.24-31,771.26-9,505.32

Finding the Fourth Proportional to 21,195.24, 31,771.26 and 9,505.32

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Solution

The fourth proportional to 21,195.24, 31,771.26 and 9,505.32 is: 14,248.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,195.24 : 31,771.26 = 9,505.32 : x
  2. Step 2: Convert to fraction form
    21,195.24/31,771.26 = 9,505.32/x
  3. Step 3: Cross multiply
    21,195.24x = 31,771.26 × 9,505.32
  4. Step 4: Simplify right side
    21,195.24x = 301,995,993.10
  5. Step 5: Solve for x
    x = 301,995,993.10/21,195.24
  6. Step 6: Final answer
    x = 14,248.29

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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.