Home / 26,149.78-39,224.33-6,428.51

Finding the Fourth Proportional to 26,149.78, 39,224.33 and 6,428.51

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Solution

The fourth proportional to 26,149.78, 39,224.33 and 6,428.51 is: 9,642.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,149.78 : 39,224.33 = 6,428.51 : x
  2. Step 2: Convert to fraction form
    26,149.78/39,224.33 = 6,428.51/x
  3. Step 3: Cross multiply
    26,149.78x = 39,224.33 × 6,428.51
  4. Step 4: Simplify right side
    26,149.78x = 252,153,997.65
  5. Step 5: Solve for x
    x = 252,153,997.65/26,149.78
  6. Step 6: Final answer
    x = 9,642.68

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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.