Home / 27,213.78-37,552.11-15,278.43

Finding the Fourth Proportional to 27,213.78, 37,552.11 and 15,278.43

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Solution

The fourth proportional to 27,213.78, 37,552.11 and 15,278.43 is: 21,082.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,213.78 : 37,552.11 = 15,278.43 : x
  2. Step 2: Convert to fraction form
    27,213.78/37,552.11 = 15,278.43/x
  3. Step 3: Cross multiply
    27,213.78x = 37,552.11 × 15,278.43
  4. Step 4: Simplify right side
    27,213.78x = 573,737,283.99
  5. Step 5: Solve for x
    x = 573,737,283.99/27,213.78
  6. Step 6: Final answer
    x = 21,082.60

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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.