Home / 39,570.97-54,605.86-21,662.55

Finding the Fourth Proportional to 39,570.97, 54,605.86 and 21,662.55

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Solution

The fourth proportional to 39,570.97, 54,605.86 and 21,662.55 is: 29,893.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,570.97 : 54,605.86 = 21,662.55 : x
  2. Step 2: Convert to fraction form
    39,570.97/54,605.86 = 21,662.55/x
  3. Step 3: Cross multiply
    39,570.97x = 54,605.86 × 21,662.55
  4. Step 4: Simplify right side
    39,570.97x = 1,182,902,172.54
  5. Step 5: Solve for x
    x = 1,182,902,172.54/39,570.97
  6. Step 6: Final answer
    x = 29,893.18

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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.