Home / 20,735.64-28,615.38-11,304.39

Finding the Fourth Proportional to 20,735.64, 28,615.38 and 11,304.39

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Solution

The fourth proportional to 20,735.64, 28,615.38 and 11,304.39 is: 15,600.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,735.64 : 28,615.38 = 11,304.39 : x
  2. Step 2: Convert to fraction form
    20,735.64/28,615.38 = 11,304.39/x
  3. Step 3: Cross multiply
    20,735.64x = 28,615.38 × 11,304.39
  4. Step 4: Simplify right side
    20,735.64x = 323,479,415.52
  5. Step 5: Solve for x
    x = 323,479,415.52/20,735.64
  6. Step 6: Final answer
    x = 15,600.17

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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.