Home / 39,706.39-54,795.70-21,801.47

Finding the Fourth Proportional to 39,706.39, 54,795.70 and 21,801.47

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Solution

The fourth proportional to 39,706.39, 54,795.70 and 21,801.47 is: 30,086.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,706.39 : 54,795.70 = 21,801.47 : x
  2. Step 2: Convert to fraction form
    39,706.39/54,795.70 = 21,801.47/x
  3. Step 3: Cross multiply
    39,706.39x = 54,795.70 × 21,801.47
  4. Step 4: Simplify right side
    39,706.39x = 1,194,626,562.95
  5. Step 5: Solve for x
    x = 1,194,626,562.95/39,706.39
  6. Step 6: Final answer
    x = 30,086.51

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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.