Home / 20,155.60-30,233.40-10,824.40

Finding the Fourth Proportional to 20,155.60, 30,233.40 and 10,824.40

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Solution

The fourth proportional to 20,155.60, 30,233.40 and 10,824.40 is: 16,236.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,155.60 : 30,233.40 = 10,824.40 : x
  2. Step 2: Convert to fraction form
    20,155.60/30,233.40 = 10,824.40/x
  3. Step 3: Cross multiply
    20,155.60x = 30,233.40 × 10,824.40
  4. Step 4: Simplify right side
    20,155.60x = 327,258,414.96
  5. Step 5: Solve for x
    x = 327,258,414.96/20,155.60
  6. Step 6: Final answer
    x = 16,236.60

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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.