Home / 15,290.33-22,911.87-12,939.44

Finding the Fourth Proportional to 15,290.33, 22,911.87 and 12,939.44

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Solution

The fourth proportional to 15,290.33, 22,911.87 and 12,939.44 is: 19,389.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,290.33 : 22,911.87 = 12,939.44 : x
  2. Step 2: Convert to fraction form
    15,290.33/22,911.87 = 12,939.44/x
  3. Step 3: Cross multiply
    15,290.33x = 22,911.87 × 12,939.44
  4. Step 4: Simplify right side
    15,290.33x = 296,466,767.15
  5. Step 5: Solve for x
    x = 296,466,767.15/15,290.33
  6. Step 6: Final answer
    x = 19,389.17

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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.