Home / 22,911.90-34,339.14-12,381.49

Finding the Fourth Proportional to 22,911.90, 34,339.14 and 12,381.49

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Solution

The fourth proportional to 22,911.90, 34,339.14 and 12,381.49 is: 18,556.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,911.90 : 34,339.14 = 12,381.49 : x
  2. Step 2: Convert to fraction form
    22,911.90/34,339.14 = 12,381.49/x
  3. Step 3: Cross multiply
    22,911.90x = 34,339.14 × 12,381.49
  4. Step 4: Simplify right side
    22,911.90x = 425,169,761.44
  5. Step 5: Solve for x
    x = 425,169,761.44/22,911.90
  6. Step 6: Final answer
    x = 18,556.73

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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.