Home / 28,010-42,022.20-10,480.04

Finding the Fourth Proportional to 28,010, 42,022.20 and 10,480.04

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Solution

The fourth proportional to 28,010, 42,022.20 and 10,480.04 is: 15,722.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,010 : 42,022.20 = 10,480.04 : x
  2. Step 2: Convert to fraction form
    28,010/42,022.20 = 10,480.04/x
  3. Step 3: Cross multiply
    28,010x = 42,022.20 × 10,480.04
  4. Step 4: Simplify right side
    28,010x = 440,394,336.89
  5. Step 5: Solve for x
    x = 440,394,336.89/28,010
  6. Step 6: Final answer
    x = 15,722.75

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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.