Home / 27,927.78-38,579.58-25,405.44

Finding the Fourth Proportional to 27,927.78, 38,579.58 and 25,405.44

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Solution

The fourth proportional to 27,927.78, 38,579.58 and 25,405.44 is: 35,095.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,927.78 : 38,579.58 = 25,405.44 : x
  2. Step 2: Convert to fraction form
    27,927.78/38,579.58 = 25,405.44/x
  3. Step 3: Cross multiply
    27,927.78x = 38,579.58 × 25,405.44
  4. Step 4: Simplify right side
    27,927.78x = 980,131,204.92
  5. Step 5: Solve for x
    x = 980,131,204.92/27,927.78
  6. Step 6: Final answer
    x = 35,095.21

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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.