Home / 33,220.20-49,830.30-31,405.80

Finding the Fourth Proportional to 33,220.20, 49,830.30 and 31,405.80

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Solution

The fourth proportional to 33,220.20, 49,830.30 and 31,405.80 is: 47,108.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,220.20 : 49,830.30 = 31,405.80 : x
  2. Step 2: Convert to fraction form
    33,220.20/49,830.30 = 31,405.80/x
  3. Step 3: Cross multiply
    33,220.20x = 49,830.30 × 31,405.80
  4. Step 4: Simplify right side
    33,220.20x = 1,564,960,435.74
  5. Step 5: Solve for x
    x = 1,564,960,435.74/33,220.20
  6. Step 6: Final answer
    x = 47,108.70

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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.