Home / 26,191.60-36,157.32-20,516.56

Finding the Fourth Proportional to 26,191.60, 36,157.32 and 20,516.56

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Solution

The fourth proportional to 26,191.60, 36,157.32 and 20,516.56 is: 28,322.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,191.60 : 36,157.32 = 20,516.56 : x
  2. Step 2: Convert to fraction form
    26,191.60/36,157.32 = 20,516.56/x
  3. Step 3: Cross multiply
    26,191.60x = 36,157.32 × 20,516.56
  4. Step 4: Simplify right side
    26,191.60x = 741,823,825.22
  5. Step 5: Solve for x
    x = 741,823,825.22/26,191.60
  6. Step 6: Final answer
    x = 28,322.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.