Home / 20,399.39-30,600.57-8,541.24

Finding the Fourth Proportional to 20,399.39, 30,600.57 and 8,541.24

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Solution

The fourth proportional to 20,399.39, 30,600.57 and 8,541.24 is: 12,812.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,399.39 : 30,600.57 = 8,541.24 : x
  2. Step 2: Convert to fraction form
    20,399.39/30,600.57 = 8,541.24/x
  3. Step 3: Cross multiply
    20,399.39x = 30,600.57 × 8,541.24
  4. Step 4: Simplify right side
    20,399.39x = 261,366,812.51
  5. Step 5: Solve for x
    x = 261,366,812.51/20,399.39
  6. Step 6: Final answer
    x = 12,812.48

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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.