Home / 38,766.70-53,494.05-21,772.80

Finding the Fourth Proportional to 38,766.70, 53,494.05 and 21,772.80

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Solution

The fourth proportional to 38,766.70, 53,494.05 and 21,772.80 is: 30,044.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,766.70 : 53,494.05 = 21,772.80 : x
  2. Step 2: Convert to fraction form
    38,766.70/53,494.05 = 21,772.80/x
  3. Step 3: Cross multiply
    38,766.70x = 53,494.05 × 21,772.80
  4. Step 4: Simplify right side
    38,766.70x = 1,164,715,333.49
  5. Step 5: Solve for x
    x = 1,164,715,333.49/38,766.70
  6. Step 6: Final answer
    x = 30,044.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.