Home / 36,399.21-54,561.56-20,581.53

Finding the Fourth Proportional to 36,399.21, 54,561.56 and 20,581.53

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Solution

The fourth proportional to 36,399.21, 54,561.56 and 20,581.53 is: 30,851.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,399.21 : 54,561.56 = 20,581.53 : x
  2. Step 2: Convert to fraction form
    36,399.21/54,561.56 = 20,581.53/x
  3. Step 3: Cross multiply
    36,399.21x = 54,561.56 × 20,581.53
  4. Step 4: Simplify right side
    36,399.21x = 1,122,960,281.08
  5. Step 5: Solve for x
    x = 1,122,960,281.08/36,399.21
  6. Step 6: Final answer
    x = 30,851.23

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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.