Home / 27,126.81-37,431.60-15,188.22

Finding the Fourth Proportional to 27,126.81, 37,431.60 and 15,188.22

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Solution

The fourth proportional to 27,126.81, 37,431.60 and 15,188.22 is: 20,957.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,126.81 : 37,431.60 = 15,188.22 : x
  2. Step 2: Convert to fraction form
    27,126.81/37,431.60 = 15,188.22/x
  3. Step 3: Cross multiply
    27,126.81x = 37,431.60 × 15,188.22
  4. Step 4: Simplify right side
    27,126.81x = 568,519,375.75
  5. Step 5: Solve for x
    x = 568,519,375.75/27,126.81
  6. Step 6: Final answer
    x = 20,957.84

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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.