Home / 36,531.45-50,412.90-20,399.01

Finding the Fourth Proportional to 36,531.45, 50,412.90 and 20,399.01

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Solution

The fourth proportional to 36,531.45, 50,412.90 and 20,399.01 is: 28,150.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,531.45 : 50,412.90 = 20,399.01 : x
  2. Step 2: Convert to fraction form
    36,531.45/50,412.90 = 20,399.01/x
  3. Step 3: Cross multiply
    36,531.45x = 50,412.90 × 20,399.01
  4. Step 4: Simplify right side
    36,531.45x = 1,028,373,251.23
  5. Step 5: Solve for x
    x = 1,028,373,251.23/36,531.45
  6. Step 6: Final answer
    x = 28,150.35

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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.