Home / 19,851.82-27,408.33-12,306.18

Finding the Fourth Proportional to 19,851.82, 27,408.33 and 12,306.18

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Solution

The fourth proportional to 19,851.82, 27,408.33 and 12,306.18 is: 16,990.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,851.82 : 27,408.33 = 12,306.18 : x
  2. Step 2: Convert to fraction form
    19,851.82/27,408.33 = 12,306.18/x
  3. Step 3: Cross multiply
    19,851.82x = 27,408.33 × 12,306.18
  4. Step 4: Simplify right side
    19,851.82x = 337,291,705.44
  5. Step 5: Solve for x
    x = 337,291,705.44/19,851.82
  6. Step 6: Final answer
    x = 16,990.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.