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Finding the Fourth Proportional to 20,224.64, 30,328.76 and 7,073.92

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Solution

The fourth proportional to 20,224.64, 30,328.76 and 7,073.92 is: 10,608.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,224.64 : 30,328.76 = 7,073.92 : x
  2. Step 2: Convert to fraction form
    20,224.64/30,328.76 = 7,073.92/x
  3. Step 3: Cross multiply
    20,224.64x = 30,328.76 × 7,073.92
  4. Step 4: Simplify right side
    20,224.64x = 214,543,221.94
  5. Step 5: Solve for x
    x = 214,543,221.94/20,224.64
  6. Step 6: Final answer
    x = 10,608.01

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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.