Home / 40,163.68-60,226.80-21,438.64

Finding the Fourth Proportional to 40,163.68, 60,226.80 and 21,438.64

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Solution

The fourth proportional to 40,163.68, 60,226.80 and 21,438.64 is: 32,147.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,163.68 : 60,226.80 = 21,438.64 : x
  2. Step 2: Convert to fraction form
    40,163.68/60,226.80 = 21,438.64/x
  3. Step 3: Cross multiply
    40,163.68x = 60,226.80 × 21,438.64
  4. Step 4: Simplify right side
    40,163.68x = 1,291,180,683.55
  5. Step 5: Solve for x
    x = 1,291,180,683.55/40,163.68
  6. Step 6: Final answer
    x = 32,147.97

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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.