Home / 20,735.60-28,615.53-11,304.16

Finding the Fourth Proportional to 20,735.60, 28,615.53 and 11,304.16

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Solution

The fourth proportional to 20,735.60, 28,615.53 and 11,304.16 is: 15,599.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,735.60 : 28,615.53 = 11,304.16 : x
  2. Step 2: Convert to fraction form
    20,735.60/28,615.53 = 11,304.16/x
  3. Step 3: Cross multiply
    20,735.60x = 28,615.53 × 11,304.16
  4. Step 4: Simplify right side
    20,735.60x = 323,474,436.87
  5. Step 5: Solve for x
    x = 323,474,436.87/20,735.60
  6. Step 6: Final answer
    x = 15,599.96

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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.