Home / 20,037.46-29,986.36-12,135.50

Finding the Fourth Proportional to 20,037.46, 29,986.36 and 12,135.50

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Solution

The fourth proportional to 20,037.46, 29,986.36 and 12,135.50 is: 18,160.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,037.46 : 29,986.36 = 12,135.50 : x
  2. Step 2: Convert to fraction form
    20,037.46/29,986.36 = 12,135.50/x
  3. Step 3: Cross multiply
    20,037.46x = 29,986.36 × 12,135.50
  4. Step 4: Simplify right side
    20,037.46x = 363,899,471.78
  5. Step 5: Solve for x
    x = 363,899,471.78/20,037.46
  6. Step 6: Final answer
    x = 18,160.96

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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.