Home / 27,759.12-38,308.56-15,183.84

Finding the Fourth Proportional to 27,759.12, 38,308.56 and 15,183.84

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Solution

The fourth proportional to 27,759.12, 38,308.56 and 15,183.84 is: 20,954.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,759.12 : 38,308.56 = 15,183.84 : x
  2. Step 2: Convert to fraction form
    27,759.12/38,308.56 = 15,183.84/x
  3. Step 3: Cross multiply
    27,759.12x = 38,308.56 × 15,183.84
  4. Step 4: Simplify right side
    27,759.12x = 581,671,045.67
  5. Step 5: Solve for x
    x = 581,671,045.67/27,759.12
  6. Step 6: Final answer
    x = 20,954.23

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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.