Home / 28,579.20-42,856.77-10,806.87

Finding the Fourth Proportional to 28,579.20, 42,856.77 and 10,806.87

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Solution

The fourth proportional to 28,579.20, 42,856.77 and 10,806.87 is: 16,205.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,579.20 : 42,856.77 = 10,806.87 : x
  2. Step 2: Convert to fraction form
    28,579.20/42,856.77 = 10,806.87/x
  3. Step 3: Cross multiply
    28,579.20x = 42,856.77 × 10,806.87
  4. Step 4: Simplify right side
    28,579.20x = 463,147,542.01
  5. Step 5: Solve for x
    x = 463,147,542.01/28,579.20
  6. Step 6: Final answer
    x = 16,205.76

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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.