Home / 19,819.20-29,728.73-5,028.08

Finding the Fourth Proportional to 19,819.20, 29,728.73 and 5,028.08

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Solution

The fourth proportional to 19,819.20, 29,728.73 and 5,028.08 is: 7,542.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,819.20 : 29,728.73 = 5,028.08 : x
  2. Step 2: Convert to fraction form
    19,819.20/29,728.73 = 5,028.08/x
  3. Step 3: Cross multiply
    19,819.20x = 29,728.73 × 5,028.08
  4. Step 4: Simplify right side
    19,819.20x = 149,478,432.74
  5. Step 5: Solve for x
    x = 149,478,432.74/19,819.20
  6. Step 6: Final answer
    x = 7,542.10

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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.