Home / 33,020.20-49,530.30-12,239.40

Finding the Fourth Proportional to 33,020.20, 49,530.30 and 12,239.40

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Solution

The fourth proportional to 33,020.20, 49,530.30 and 12,239.40 is: 18,359.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,020.20 : 49,530.30 = 12,239.40 : x
  2. Step 2: Convert to fraction form
    33,020.20/49,530.30 = 12,239.40/x
  3. Step 3: Cross multiply
    33,020.20x = 49,530.30 × 12,239.40
  4. Step 4: Simplify right side
    33,020.20x = 606,221,153.82
  5. Step 5: Solve for x
    x = 606,221,153.82/33,020.20
  6. Step 6: Final answer
    x = 18,359.10

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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.