Home / 27,624.08-38,121.50-15,687.68

Finding the Fourth Proportional to 27,624.08, 38,121.50 and 15,687.68

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Solution

The fourth proportional to 27,624.08, 38,121.50 and 15,687.68 is: 21,649.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,624.08 : 38,121.50 = 15,687.68 : x
  2. Step 2: Convert to fraction form
    27,624.08/38,121.50 = 15,687.68/x
  3. Step 3: Cross multiply
    27,624.08x = 38,121.50 × 15,687.68
  4. Step 4: Simplify right side
    27,624.08x = 598,037,741.73
  5. Step 5: Solve for x
    x = 598,037,741.73/27,624.08
  6. Step 6: Final answer
    x = 21,649.14

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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.