Home / 20,253.57-27,951.31-11,302.80

Finding the Fourth Proportional to 20,253.57, 27,951.31 and 11,302.80

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Solution

The fourth proportional to 20,253.57, 27,951.31 and 11,302.80 is: 15,598.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,253.57 : 27,951.31 = 11,302.80 : x
  2. Step 2: Convert to fraction form
    20,253.57/27,951.31 = 11,302.80/x
  3. Step 3: Cross multiply
    20,253.57x = 27,951.31 × 11,302.80
  4. Step 4: Simplify right side
    20,253.57x = 315,928,066.67
  5. Step 5: Solve for x
    x = 315,928,066.67/20,253.57
  6. Step 6: Final answer
    x = 15,598.64

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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.