Home / 39,645.67-54,728.49-27,755.68

Finding the Fourth Proportional to 39,645.67, 54,728.49 and 27,755.68

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Solution

The fourth proportional to 39,645.67, 54,728.49 and 27,755.68 is: 38,315.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,645.67 : 54,728.49 = 27,755.68 : x
  2. Step 2: Convert to fraction form
    39,645.67/54,728.49 = 27,755.68/x
  3. Step 3: Cross multiply
    39,645.67x = 54,728.49 × 27,755.68
  4. Step 4: Simplify right side
    39,645.67x = 1,519,026,455.32
  5. Step 5: Solve for x
    x = 1,519,026,455.32/39,645.67
  6. Step 6: Final answer
    x = 38,315.07

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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.