Home / 36,484.80-54,727.20-20,889.60

Finding the Fourth Proportional to 36,484.80, 54,727.20 and 20,889.60

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Solution

The fourth proportional to 36,484.80, 54,727.20 and 20,889.60 is: 31,334.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,484.80 : 54,727.20 = 20,889.60 : x
  2. Step 2: Convert to fraction form
    36,484.80/54,727.20 = 20,889.60/x
  3. Step 3: Cross multiply
    36,484.80x = 54,727.20 × 20,889.60
  4. Step 4: Simplify right side
    36,484.80x = 1,143,229,317.12
  5. Step 5: Solve for x
    x = 1,143,229,317.12/36,484.80
  6. Step 6: Final answer
    x = 31,334.40

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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.