Home / 27,624.60-38,121.84-15,687.36

Finding the Fourth Proportional to 27,624.60, 38,121.84 and 15,687.36

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Solution

The fourth proportional to 27,624.60, 38,121.84 and 15,687.36 is: 21,648.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,624.60 : 38,121.84 = 15,687.36 : x
  2. Step 2: Convert to fraction form
    27,624.60/38,121.84 = 15,687.36/x
  3. Step 3: Cross multiply
    27,624.60x = 38,121.84 × 15,687.36
  4. Step 4: Simplify right side
    27,624.60x = 598,031,027.94
  5. Step 5: Solve for x
    x = 598,031,027.94/27,624.60
  6. Step 6: Final answer
    x = 21,648.50

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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.