Home / 15,961.72-23,945.66-5,431.31

Finding the Fourth Proportional to 15,961.72, 23,945.66 and 5,431.31

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Solution

The fourth proportional to 15,961.72, 23,945.66 and 5,431.31 is: 8,148.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,961.72 : 23,945.66 = 5,431.31 : x
  2. Step 2: Convert to fraction form
    15,961.72/23,945.66 = 5,431.31/x
  3. Step 3: Cross multiply
    15,961.72x = 23,945.66 × 5,431.31
  4. Step 4: Simplify right side
    15,961.72x = 130,056,275.46
  5. Step 5: Solve for x
    x = 130,056,275.46/15,961.72
  6. Step 6: Final answer
    x = 8,148.01

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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.