Home / 28,689.70-43,037.20-11,160.86

Finding the Fourth Proportional to 28,689.70, 43,037.20 and 11,160.86

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Solution

The fourth proportional to 28,689.70, 43,037.20 and 11,160.86 is: 16,742.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,689.70 : 43,037.20 = 11,160.86 : x
  2. Step 2: Convert to fraction form
    28,689.70/43,037.20 = 11,160.86/x
  3. Step 3: Cross multiply
    28,689.70x = 43,037.20 × 11,160.86
  4. Step 4: Simplify right side
    28,689.70x = 480,332,163.99
  5. Step 5: Solve for x
    x = 480,332,163.99/28,689.70
  6. Step 6: Final answer
    x = 16,742.32

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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.