Home / 27,438.37-37,867.76-19,787.97

Finding the Fourth Proportional to 27,438.37, 37,867.76 and 19,787.97

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Solution

The fourth proportional to 27,438.37, 37,867.76 and 19,787.97 is: 27,309.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,438.37 : 37,867.76 = 19,787.97 : x
  2. Step 2: Convert to fraction form
    27,438.37/37,867.76 = 19,787.97/x
  3. Step 3: Cross multiply
    27,438.37x = 37,867.76 × 19,787.97
  4. Step 4: Simplify right side
    27,438.37x = 749,326,098.85
  5. Step 5: Solve for x
    x = 749,326,098.85/27,438.37
  6. Step 6: Final answer
    x = 27,309.42

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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.