Home / 27,735.42-38,274.78-15,160.20

Finding the Fourth Proportional to 27,735.42, 38,274.78 and 15,160.20

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Solution

The fourth proportional to 27,735.42, 38,274.78 and 15,160.20 is: 20,921.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,735.42 : 38,274.78 = 15,160.20 : x
  2. Step 2: Convert to fraction form
    27,735.42/38,274.78 = 15,160.20/x
  3. Step 3: Cross multiply
    27,735.42x = 38,274.78 × 15,160.20
  4. Step 4: Simplify right side
    27,735.42x = 580,253,319.76
  5. Step 5: Solve for x
    x = 580,253,319.76/27,735.42
  6. Step 6: Final answer
    x = 20,921.02

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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.