Home / 39,111.26-53,901.25-27,781.18

Finding the Fourth Proportional to 39,111.26, 53,901.25 and 27,781.18

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Solution

The fourth proportional to 39,111.26, 53,901.25 and 27,781.18 is: 38,286.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,111.26 : 53,901.25 = 27,781.18 : x
  2. Step 2: Convert to fraction form
    39,111.26/53,901.25 = 27,781.18/x
  3. Step 3: Cross multiply
    39,111.26x = 53,901.25 × 27,781.18
  4. Step 4: Simplify right side
    39,111.26x = 1,497,440,124.27
  5. Step 5: Solve for x
    x = 1,497,440,124.27/39,111.26
  6. Step 6: Final answer
    x = 38,286.68

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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.