Home / 27,735.80-38,275.39-15,160.55

Finding the Fourth Proportional to 27,735.80, 38,275.39 and 15,160.55

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Solution

The fourth proportional to 27,735.80, 38,275.39 and 15,160.55 is: 20,921.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,735.80 : 38,275.39 = 15,160.55 : x
  2. Step 2: Convert to fraction form
    27,735.80/38,275.39 = 15,160.55/x
  3. Step 3: Cross multiply
    27,735.80x = 38,275.39 × 15,160.55
  4. Step 4: Simplify right side
    27,735.80x = 580,275,963.86
  5. Step 5: Solve for x
    x = 580,275,963.86/27,735.80
  6. Step 6: Final answer
    x = 20,921.55

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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.