Home / 20,028.20-30,061.80-9,647.24

Finding the Fourth Proportional to 20,028.20, 30,061.80 and 9,647.24

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Solution

The fourth proportional to 20,028.20, 30,061.80 and 9,647.24 is: 14,480.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,028.20 : 30,061.80 = 9,647.24 : x
  2. Step 2: Convert to fraction form
    20,028.20/30,061.80 = 9,647.24/x
  3. Step 3: Cross multiply
    20,028.20x = 30,061.80 × 9,647.24
  4. Step 4: Simplify right side
    20,028.20x = 290,013,249.12
  5. Step 5: Solve for x
    x = 290,013,249.12/20,028.20
  6. Step 6: Final answer
    x = 14,480.25

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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.