Home / 20,340.24-30,513.42-7,192.74

Finding the Fourth Proportional to 20,340.24, 30,513.42 and 7,192.74

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Solution

The fourth proportional to 20,340.24, 30,513.42 and 7,192.74 is: 10,790.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,340.24 : 30,513.42 = 7,192.74 : x
  2. Step 2: Convert to fraction form
    20,340.24/30,513.42 = 7,192.74/x
  3. Step 3: Cross multiply
    20,340.24x = 30,513.42 × 7,192.74
  4. Step 4: Simplify right side
    20,340.24x = 219,475,096.57
  5. Step 5: Solve for x
    x = 219,475,096.57/20,340.24
  6. Step 6: Final answer
    x = 10,790.19

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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.