Home / 20,316.92-30,475.23-5,525.78

Finding the Fourth Proportional to 20,316.92, 30,475.23 and 5,525.78

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Solution

The fourth proportional to 20,316.92, 30,475.23 and 5,525.78 is: 8,288.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,316.92 : 30,475.23 = 5,525.78 : x
  2. Step 2: Convert to fraction form
    20,316.92/30,475.23 = 5,525.78/x
  3. Step 3: Cross multiply
    20,316.92x = 30,475.23 × 5,525.78
  4. Step 4: Simplify right side
    20,316.92x = 168,399,264.05
  5. Step 5: Solve for x
    x = 168,399,264.05/20,316.92
  6. Step 6: Final answer
    x = 8,288.62

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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.