Home / 39,083.29-53,935.12-21,178.33

Finding the Fourth Proportional to 39,083.29, 53,935.12 and 21,178.33

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Solution

The fourth proportional to 39,083.29, 53,935.12 and 21,178.33 is: 29,226.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,083.29 : 53,935.12 = 21,178.33 : x
  2. Step 2: Convert to fraction form
    39,083.29/53,935.12 = 21,178.33/x
  3. Step 3: Cross multiply
    39,083.29x = 53,935.12 × 21,178.33
  4. Step 4: Simplify right side
    39,083.29x = 1,142,255,769.95
  5. Step 5: Solve for x
    x = 1,142,255,769.95/39,083.29
  6. Step 6: Final answer
    x = 29,226.19

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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.