Home / 36,438.85-54,658.28-20,845.54

Finding the Fourth Proportional to 36,438.85, 54,658.28 and 20,845.54

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Solution

The fourth proportional to 36,438.85, 54,658.28 and 20,845.54 is: 31,268.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,438.85 : 54,658.28 = 20,845.54 : x
  2. Step 2: Convert to fraction form
    36,438.85/54,658.28 = 20,845.54/x
  3. Step 3: Cross multiply
    36,438.85x = 54,658.28 × 20,845.54
  4. Step 4: Simplify right side
    36,438.85x = 1,139,381,257.84
  5. Step 5: Solve for x
    x = 1,139,381,257.84/36,438.85
  6. Step 6: Final answer
    x = 31,268.31

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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.