Home / 39,009.27-53,832.27-21,781.91

Finding the Fourth Proportional to 39,009.27, 53,832.27 and 21,781.91

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Solution

The fourth proportional to 39,009.27, 53,832.27 and 21,781.91 is: 30,058.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,009.27 : 53,832.27 = 21,781.91 : x
  2. Step 2: Convert to fraction form
    39,009.27/53,832.27 = 21,781.91/x
  3. Step 3: Cross multiply
    39,009.27x = 53,832.27 × 21,781.91
  4. Step 4: Simplify right side
    39,009.27x = 1,172,569,282.16
  5. Step 5: Solve for x
    x = 1,172,569,282.16/39,009.27
  6. Step 6: Final answer
    x = 30,058.73

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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.