Home / 28,687.76-43,037.10-11,156.22

Finding the Fourth Proportional to 28,687.76, 43,037.10 and 11,156.22

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Solution

The fourth proportional to 28,687.76, 43,037.10 and 11,156.22 is: 16,736.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,687.76 : 43,037.10 = 11,156.22 : x
  2. Step 2: Convert to fraction form
    28,687.76/43,037.10 = 11,156.22/x
  3. Step 3: Cross multiply
    28,687.76x = 43,037.10 × 11,156.22
  4. Step 4: Simplify right side
    28,687.76x = 480,131,355.76
  5. Step 5: Solve for x
    x = 480,131,355.76/28,687.76
  6. Step 6: Final answer
    x = 16,736.45

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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.