Home / 27,787.75-38,339.52-15,846.73

Finding the Fourth Proportional to 27,787.75, 38,339.52 and 15,846.73

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Solution

The fourth proportional to 27,787.75, 38,339.52 and 15,846.73 is: 21,864.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,787.75 : 38,339.52 = 15,846.73 : x
  2. Step 2: Convert to fraction form
    27,787.75/38,339.52 = 15,846.73/x
  3. Step 3: Cross multiply
    27,787.75x = 38,339.52 × 15,846.73
  4. Step 4: Simplify right side
    27,787.75x = 607,556,021.77
  5. Step 5: Solve for x
    x = 607,556,021.77/27,787.75
  6. Step 6: Final answer
    x = 21,864.17

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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.