Home / 26,144.78-39,185.04-12,085.79

Finding the Fourth Proportional to 26,144.78, 39,185.04 and 12,085.79

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Solution

The fourth proportional to 26,144.78, 39,185.04 and 12,085.79 is: 18,113.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,144.78 : 39,185.04 = 12,085.79 : x
  2. Step 2: Convert to fraction form
    26,144.78/39,185.04 = 12,085.79/x
  3. Step 3: Cross multiply
    26,144.78x = 39,185.04 × 12,085.79
  4. Step 4: Simplify right side
    26,144.78x = 473,581,968.66
  5. Step 5: Solve for x
    x = 473,581,968.66/26,144.78
  6. Step 6: Final answer
    x = 18,113.82

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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.