Home / 36,438.85-50,289.19-21,330.60

Finding the Fourth Proportional to 36,438.85, 50,289.19 and 21,330.60

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Solution

The fourth proportional to 36,438.85, 50,289.19 and 21,330.60 is: 29,438.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,438.85 : 50,289.19 = 21,330.60 : x
  2. Step 2: Convert to fraction form
    36,438.85/50,289.19 = 21,330.60/x
  3. Step 3: Cross multiply
    36,438.85x = 50,289.19 × 21,330.60
  4. Step 4: Simplify right side
    36,438.85x = 1,072,698,596.21
  5. Step 5: Solve for x
    x = 1,072,698,596.21/36,438.85
  6. Step 6: Final answer
    x = 29,438.32

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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.