Home / 19,819.32-29,728.92-5,028.21

Finding the Fourth Proportional to 19,819.32, 29,728.92 and 5,028.21

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Solution

The fourth proportional to 19,819.32, 29,728.92 and 5,028.21 is: 7,542.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,819.32 : 29,728.92 = 5,028.21 : x
  2. Step 2: Convert to fraction form
    19,819.32/29,728.92 = 5,028.21/x
  3. Step 3: Cross multiply
    19,819.32x = 29,728.92 × 5,028.21
  4. Step 4: Simplify right side
    19,819.32x = 149,483,252.83
  5. Step 5: Solve for x
    x = 149,483,252.83/19,819.32
  6. Step 6: Final answer
    x = 7,542.30

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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.