Home / 28,528.80-42,800.49-10,993.92

Finding the Fourth Proportional to 28,528.80, 42,800.49 and 10,993.92

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Solution

The fourth proportional to 28,528.80, 42,800.49 and 10,993.92 is: 16,493.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,528.80 : 42,800.49 = 10,993.92 : x
  2. Step 2: Convert to fraction form
    28,528.80/42,800.49 = 10,993.92/x
  3. Step 3: Cross multiply
    28,528.80x = 42,800.49 × 10,993.92
  4. Step 4: Simplify right side
    28,528.80x = 470,545,163.02
  5. Step 5: Solve for x
    x = 470,545,163.02/28,528.80
  6. Step 6: Final answer
    x = 16,493.69

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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.