Home / 39,759.25-54,868.13-21,610.14

Finding the Fourth Proportional to 39,759.25, 54,868.13 and 21,610.14

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Solution

The fourth proportional to 39,759.25, 54,868.13 and 21,610.14 is: 29,822.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,759.25 : 54,868.13 = 21,610.14 : x
  2. Step 2: Convert to fraction form
    39,759.25/54,868.13 = 21,610.14/x
  3. Step 3: Cross multiply
    39,759.25x = 54,868.13 × 21,610.14
  4. Step 4: Simplify right side
    39,759.25x = 1,185,707,970.84
  5. Step 5: Solve for x
    x = 1,185,707,970.84/39,759.25
  6. Step 6: Final answer
    x = 29,822.19

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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.