Home / 27,765.88-38,316.86-15,190.64

Finding the Fourth Proportional to 27,765.88, 38,316.86 and 15,190.64

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Solution

The fourth proportional to 27,765.88, 38,316.86 and 15,190.64 is: 20,963.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,765.88 : 38,316.86 = 15,190.64 : x
  2. Step 2: Convert to fraction form
    27,765.88/38,316.86 = 15,190.64/x
  3. Step 3: Cross multiply
    27,765.88x = 38,316.86 × 15,190.64
  4. Step 4: Simplify right side
    27,765.88x = 582,057,626.19
  5. Step 5: Solve for x
    x = 582,057,626.19/27,765.88
  6. Step 6: Final answer
    x = 20,963.05

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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.