Home / 27,838.54-38,365.65-19,772.55

Finding the Fourth Proportional to 27,838.54, 38,365.65 and 19,772.55

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Solution

The fourth proportional to 27,838.54, 38,365.65 and 19,772.55 is: 27,249.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,838.54 : 38,365.65 = 19,772.55 : x
  2. Step 2: Convert to fraction form
    27,838.54/38,365.65 = 19,772.55/x
  3. Step 3: Cross multiply
    27,838.54x = 38,365.65 × 19,772.55
  4. Step 4: Simplify right side
    27,838.54x = 758,586,732.91
  5. Step 5: Solve for x
    x = 758,586,732.91/27,838.54
  6. Step 6: Final answer
    x = 27,249.52

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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.