Home / 20,735.44-28,615.20-11,304.16

Finding the Fourth Proportional to 20,735.44, 28,615.20 and 11,304.16

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Solution

The fourth proportional to 20,735.44, 28,615.20 and 11,304.16 is: 15,599.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,735.44 : 28,615.20 = 11,304.16 : x
  2. Step 2: Convert to fraction form
    20,735.44/28,615.20 = 11,304.16/x
  3. Step 3: Cross multiply
    20,735.44x = 28,615.20 × 11,304.16
  4. Step 4: Simplify right side
    20,735.44x = 323,470,799.23
  5. Step 5: Solve for x
    x = 323,470,799.23/20,735.44
  6. Step 6: Final answer
    x = 15,599.90

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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.