Home / 20,735.50-28,615.04-11,304.04

Finding the Fourth Proportional to 20,735.50, 28,615.04 and 11,304.04

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Solution

The fourth proportional to 20,735.50, 28,615.04 and 11,304.04 is: 15,599.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,735.50 : 28,615.04 = 11,304.04 : x
  2. Step 2: Convert to fraction form
    20,735.50/28,615.04 = 11,304.04/x
  3. Step 3: Cross multiply
    20,735.50x = 28,615.04 × 11,304.04
  4. Step 4: Simplify right side
    20,735.50x = 323,465,556.76
  5. Step 5: Solve for x
    x = 323,465,556.76/20,735.50
  6. Step 6: Final answer
    x = 15,599.60

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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.