Home / 20,216.13-30,322.79-7,563.48

Finding the Fourth Proportional to 20,216.13, 30,322.79 and 7,563.48

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Solution

The fourth proportional to 20,216.13, 30,322.79 and 7,563.48 is: 11,344.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,216.13 : 30,322.79 = 7,563.48 : x
  2. Step 2: Convert to fraction form
    20,216.13/30,322.79 = 7,563.48/x
  3. Step 3: Cross multiply
    20,216.13x = 30,322.79 × 7,563.48
  4. Step 4: Simplify right side
    20,216.13x = 229,345,777.89
  5. Step 5: Solve for x
    x = 229,345,777.89/20,216.13
  6. Step 6: Final answer
    x = 11,344.69

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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.