Home / 27,115.10-37,418.45-15,178.42

Finding the Fourth Proportional to 27,115.10, 37,418.45 and 15,178.42

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Solution

The fourth proportional to 27,115.10, 37,418.45 and 15,178.42 is: 20,946.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,115.10 : 37,418.45 = 15,178.42 : x
  2. Step 2: Convert to fraction form
    27,115.10/37,418.45 = 15,178.42/x
  3. Step 3: Cross multiply
    27,115.10x = 37,418.45 × 15,178.42
  4. Step 4: Simplify right side
    27,115.10x = 567,952,949.85
  5. Step 5: Solve for x
    x = 567,952,949.85/27,115.10
  6. Step 6: Final answer
    x = 20,946.00

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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.