Home / 27,661.12-38,173.12-15,086.08

Finding the Fourth Proportional to 27,661.12, 38,173.12 and 15,086.08

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Solution

The fourth proportional to 27,661.12, 38,173.12 and 15,086.08 is: 20,819.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,661.12 : 38,173.12 = 15,086.08 : x
  2. Step 2: Convert to fraction form
    27,661.12/38,173.12 = 15,086.08/x
  3. Step 3: Cross multiply
    27,661.12x = 38,173.12 × 15,086.08
  4. Step 4: Simplify right side
    27,661.12x = 575,882,742.17
  5. Step 5: Solve for x
    x = 575,882,742.17/27,661.12
  6. Step 6: Final answer
    x = 20,819.21

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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.