Home / 29,164.68-43,681.37-20,438.55

Finding the Fourth Proportional to 29,164.68, 43,681.37 and 20,438.55

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Solution

The fourth proportional to 29,164.68, 43,681.37 and 20,438.55 is: 30,611.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,164.68 : 43,681.37 = 20,438.55 : x
  2. Step 2: Convert to fraction form
    29,164.68/43,681.37 = 20,438.55/x
  3. Step 3: Cross multiply
    29,164.68x = 43,681.37 × 20,438.55
  4. Step 4: Simplify right side
    29,164.68x = 892,783,762.62
  5. Step 5: Solve for x
    x = 892,783,762.62/29,164.68
  6. Step 6: Final answer
    x = 30,611.81

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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.