Home / 27,735.21-38,274.53-15,160.05

Finding the Fourth Proportional to 27,735.21, 38,274.53 and 15,160.05

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Solution

The fourth proportional to 27,735.21, 38,274.53 and 15,160.05 is: 20,920.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,735.21 : 38,274.53 = 15,160.05 : x
  2. Step 2: Convert to fraction form
    27,735.21/38,274.53 = 15,160.05/x
  3. Step 3: Cross multiply
    27,735.21x = 38,274.53 × 15,160.05
  4. Step 4: Simplify right side
    27,735.21x = 580,243,712.73
  5. Step 5: Solve for x
    x = 580,243,712.73/27,735.21
  6. Step 6: Final answer
    x = 20,920.83

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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.