Home / 36,140.40-54,212.12-12,766.96

Finding the Fourth Proportional to 36,140.40, 54,212.12 and 12,766.96

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Solution

The fourth proportional to 36,140.40, 54,212.12 and 12,766.96 is: 19,150.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,140.40 : 54,212.12 = 12,766.96 : x
  2. Step 2: Convert to fraction form
    36,140.40/54,212.12 = 12,766.96/x
  3. Step 3: Cross multiply
    36,140.40x = 54,212.12 × 12,766.96
  4. Step 4: Simplify right side
    36,140.40x = 692,123,967.56
  5. Step 5: Solve for x
    x = 692,123,967.56/36,140.40
  6. Step 6: Final answer
    x = 19,150.98

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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.