Home / 20,243.27-30,357.60-8,557.40

Finding the Fourth Proportional to 20,243.27, 30,357.60 and 8,557.40

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Solution

The fourth proportional to 20,243.27, 30,357.60 and 8,557.40 is: 12,833.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,243.27 : 30,357.60 = 8,557.40 : x
  2. Step 2: Convert to fraction form
    20,243.27/30,357.60 = 8,557.40/x
  3. Step 3: Cross multiply
    20,243.27x = 30,357.60 × 8,557.40
  4. Step 4: Simplify right side
    20,243.27x = 259,781,974.45
  5. Step 5: Solve for x
    x = 259,781,974.45/20,243.27
  6. Step 6: Final answer
    x = 12,833.01

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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.