Home / 27,661.50-38,173.68-15,087.06

Finding the Fourth Proportional to 27,661.50, 38,173.68 and 15,087.06

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Solution

The fourth proportional to 27,661.50, 38,173.68 and 15,087.06 is: 20,820.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,661.50 : 38,173.68 = 15,087.06 : x
  2. Step 2: Convert to fraction form
    27,661.50/38,173.68 = 15,087.06/x
  3. Step 3: Cross multiply
    27,661.50x = 38,173.68 × 15,087.06
  4. Step 4: Simplify right side
    27,661.50x = 575,928,600.58
  5. Step 5: Solve for x
    x = 575,928,600.58/27,661.50
  6. Step 6: Final answer
    x = 20,820.58

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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.