Home / 20,736.17-28,615.83-11,304.71

Finding the Fourth Proportional to 20,736.17, 28,615.83 and 11,304.71

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Solution

The fourth proportional to 20,736.17, 28,615.83 and 11,304.71 is: 15,600.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736.17 : 28,615.83 = 11,304.71 : x
  2. Step 2: Convert to fraction form
    20,736.17/28,615.83 = 11,304.71/x
  3. Step 3: Cross multiply
    20,736.17x = 28,615.83 × 11,304.71
  4. Step 4: Simplify right side
    20,736.17x = 323,493,659.56
  5. Step 5: Solve for x
    x = 323,493,659.56/20,736.17
  6. Step 6: Final answer
    x = 15,600.45

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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.