Home / 19,820.68-29,728.26-5,028.68

Finding the Fourth Proportional to 19,820.68, 29,728.26 and 5,028.68

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Solution

The fourth proportional to 19,820.68, 29,728.26 and 5,028.68 is: 7,542.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,820.68 : 29,728.26 = 5,028.68 : x
  2. Step 2: Convert to fraction form
    19,820.68/29,728.26 = 5,028.68/x
  3. Step 3: Cross multiply
    19,820.68x = 29,728.26 × 5,028.68
  4. Step 4: Simplify right side
    19,820.68x = 149,493,906.50
  5. Step 5: Solve for x
    x = 149,493,906.50/19,820.68
  6. Step 6: Final answer
    x = 7,542.32

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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.