Home / 28,250.80-42,323.76-20,229.01

Finding the Fourth Proportional to 28,250.80, 42,323.76 and 20,229.01

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Solution

The fourth proportional to 28,250.80, 42,323.76 and 20,229.01 is: 30,305.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,250.80 : 42,323.76 = 20,229.01 : x
  2. Step 2: Convert to fraction form
    28,250.80/42,323.76 = 20,229.01/x
  3. Step 3: Cross multiply
    28,250.80x = 42,323.76 × 20,229.01
  4. Step 4: Simplify right side
    28,250.80x = 856,167,709.04
  5. Step 5: Solve for x
    x = 856,167,709.04/28,250.80
  6. Step 6: Final answer
    x = 30,305.97

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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.