Home / 39,083.56-53,935.50-21,178.56

Finding the Fourth Proportional to 39,083.56, 53,935.50 and 21,178.56

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Solution

The fourth proportional to 39,083.56, 53,935.50 and 21,178.56 is: 29,226.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,083.56 : 53,935.50 = 21,178.56 : x
  2. Step 2: Convert to fraction form
    39,083.56/53,935.50 = 21,178.56/x
  3. Step 3: Cross multiply
    39,083.56x = 53,935.50 × 21,178.56
  4. Step 4: Simplify right side
    39,083.56x = 1,142,275,847.31
  5. Step 5: Solve for x
    x = 1,142,275,847.31/39,083.56
  6. Step 6: Final answer
    x = 29,226.51

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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.