Home / 20,213.57-30,323.60-8,528.51

Finding the Fourth Proportional to 20,213.57, 30,323.60 and 8,528.51

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Solution

The fourth proportional to 20,213.57, 30,323.60 and 8,528.51 is: 12,794.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213.57 : 30,323.60 = 8,528.51 : x
  2. Step 2: Convert to fraction form
    20,213.57/30,323.60 = 8,528.51/x
  3. Step 3: Cross multiply
    20,213.57x = 30,323.60 × 8,528.51
  4. Step 4: Simplify right side
    20,213.57x = 258,615,190.98
  5. Step 5: Solve for x
    x = 258,615,190.98/20,213.57
  6. Step 6: Final answer
    x = 12,794.14

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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.