Home / 26,431.96-39,663.66-10,638.44

Finding the Fourth Proportional to 26,431.96, 39,663.66 and 10,638.44

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Solution

The fourth proportional to 26,431.96, 39,663.66 and 10,638.44 is: 15,963.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,431.96 : 39,663.66 = 10,638.44 : x
  2. Step 2: Convert to fraction form
    26,431.96/39,663.66 = 10,638.44/x
  3. Step 3: Cross multiply
    26,431.96x = 39,663.66 × 10,638.44
  4. Step 4: Simplify right side
    26,431.96x = 421,959,467.09
  5. Step 5: Solve for x
    x = 421,959,467.09/26,431.96
  6. Step 6: Final answer
    x = 15,963.99

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1.5x scale

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.