Home / 39,017.88-53,844.68-21,112.83

Finding the Fourth Proportional to 39,017.88, 53,844.68 and 21,112.83

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Solution

The fourth proportional to 39,017.88, 53,844.68 and 21,112.83 is: 29,135.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,017.88 : 53,844.68 = 21,112.83 : x
  2. Step 2: Convert to fraction form
    39,017.88/53,844.68 = 21,112.83/x
  3. Step 3: Cross multiply
    39,017.88x = 53,844.68 × 21,112.83
  4. Step 4: Simplify right side
    39,017.88x = 1,136,813,628.03
  5. Step 5: Solve for x
    x = 1,136,813,628.03/39,017.88
  6. Step 6: Final answer
    x = 29,135.71

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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.