Home / 20,172.35-30,258.52-9,076.97

Finding the Fourth Proportional to 20,172.35, 30,258.52 and 9,076.97

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Solution

The fourth proportional to 20,172.35, 30,258.52 and 9,076.97 is: 13,615.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,172.35 : 30,258.52 = 9,076.97 : x
  2. Step 2: Convert to fraction form
    20,172.35/30,258.52 = 9,076.97/x
  3. Step 3: Cross multiply
    20,172.35x = 30,258.52 × 9,076.97
  4. Step 4: Simplify right side
    20,172.35x = 274,655,504.30
  5. Step 5: Solve for x
    x = 274,655,504.30/20,172.35
  6. Step 6: Final answer
    x = 13,615.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.