Home / 20,735.90-28,615.54-11,304.46

Finding the Fourth Proportional to 20,735.90, 28,615.54 and 11,304.46

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Solution

The fourth proportional to 20,735.90, 28,615.54 and 11,304.46 is: 15,600.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,735.90 : 28,615.54 = 11,304.46 : x
  2. Step 2: Convert to fraction form
    20,735.90/28,615.54 = 11,304.46/x
  3. Step 3: Cross multiply
    20,735.90x = 28,615.54 × 11,304.46
  4. Step 4: Simplify right side
    20,735.90x = 323,483,227.31
  5. Step 5: Solve for x
    x = 323,483,227.31/20,735.90
  6. Step 6: Final answer
    x = 15,600.15

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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.