Home / 27,445.70-37,874.09-15,508.78

Finding the Fourth Proportional to 27,445.70, 37,874.09 and 15,508.78

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Solution

The fourth proportional to 27,445.70, 37,874.09 and 15,508.78 is: 21,401.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,445.70 : 37,874.09 = 15,508.78 : x
  2. Step 2: Convert to fraction form
    27,445.70/37,874.09 = 15,508.78/x
  3. Step 3: Cross multiply
    27,445.70x = 37,874.09 × 15,508.78
  4. Step 4: Simplify right side
    27,445.70x = 587,380,929.51
  5. Step 5: Solve for x
    x = 587,380,929.51/27,445.70
  6. Step 6: Final answer
    x = 21,401.56

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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.