Home / 27,772.24-38,324.75-15,839.42

Finding the Fourth Proportional to 27,772.24, 38,324.75 and 15,839.42

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Solution

The fourth proportional to 27,772.24, 38,324.75 and 15,839.42 is: 21,857.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,772.24 : 38,324.75 = 15,839.42 : x
  2. Step 2: Convert to fraction form
    27,772.24/38,324.75 = 15,839.42/x
  3. Step 3: Cross multiply
    27,772.24x = 38,324.75 × 15,839.42
  4. Step 4: Simplify right side
    27,772.24x = 607,041,929.82
  5. Step 5: Solve for x
    x = 607,041,929.82/27,772.24
  6. Step 6: Final answer
    x = 21,857.86

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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.