Home / 39,083.98-53,935.94-21,178.98

Finding the Fourth Proportional to 39,083.98, 53,935.94 and 21,178.98

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Solution

The fourth proportional to 39,083.98, 53,935.94 and 21,178.98 is: 29,227.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,083.98 : 53,935.94 = 21,178.98 : x
  2. Step 2: Convert to fraction form
    39,083.98/53,935.94 = 21,178.98/x
  3. Step 3: Cross multiply
    39,083.98x = 53,935.94 × 21,178.98
  4. Step 4: Simplify right side
    39,083.98x = 1,142,308,194.54
  5. Step 5: Solve for x
    x = 1,142,308,194.54/39,083.98
  6. Step 6: Final answer
    x = 29,227.02

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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.