Home / 20,210.24-30,307.97-7,724.09

Finding the Fourth Proportional to 20,210.24, 30,307.97 and 7,724.09

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Solution

The fourth proportional to 20,210.24, 30,307.97 and 7,724.09 is: 11,583.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,210.24 : 30,307.97 = 7,724.09 : x
  2. Step 2: Convert to fraction form
    20,210.24/30,307.97 = 7,724.09/x
  3. Step 3: Cross multiply
    20,210.24x = 30,307.97 × 7,724.09
  4. Step 4: Simplify right side
    20,210.24x = 234,101,583.08
  5. Step 5: Solve for x
    x = 234,101,583.08/20,210.24
  6. Step 6: Final answer
    x = 11,583.31

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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.