Home / 28,647.88-43,037.70-20,348.08

Finding the Fourth Proportional to 28,647.88, 43,037.70 and 20,348.08

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Solution

The fourth proportional to 28,647.88, 43,037.70 and 20,348.08 is: 30,568.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,647.88 : 43,037.70 = 20,348.08 : x
  2. Step 2: Convert to fraction form
    28,647.88/43,037.70 = 20,348.08/x
  3. Step 3: Cross multiply
    28,647.88x = 43,037.70 × 20,348.08
  4. Step 4: Simplify right side
    28,647.88x = 875,734,562.62
  5. Step 5: Solve for x
    x = 875,734,562.62/28,647.88
  6. Step 6: Final answer
    x = 30,568.91

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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.