Home / 22,189.80-33,275.18-8,145.21

Finding the Fourth Proportional to 22,189.80, 33,275.18 and 8,145.21

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Solution

The fourth proportional to 22,189.80, 33,275.18 and 8,145.21 is: 12,214.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,189.80 : 33,275.18 = 8,145.21 : x
  2. Step 2: Convert to fraction form
    22,189.80/33,275.18 = 8,145.21/x
  3. Step 3: Cross multiply
    22,189.80x = 33,275.18 × 8,145.21
  4. Step 4: Simplify right side
    22,189.80x = 271,033,288.16
  5. Step 5: Solve for x
    x = 271,033,288.16/22,189.80
  6. Step 6: Final answer
    x = 12,214.32

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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.