Home / 28,249.47-38,991.44-19,300.59

Finding the Fourth Proportional to 28,249.47, 38,991.44 and 19,300.59

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Solution

The fourth proportional to 28,249.47, 38,991.44 and 19,300.59 is: 26,639.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,249.47 : 38,991.44 = 19,300.59 : x
  2. Step 2: Convert to fraction form
    28,249.47/38,991.44 = 19,300.59/x
  3. Step 3: Cross multiply
    28,249.47x = 38,991.44 × 19,300.59
  4. Step 4: Simplify right side
    28,249.47x = 752,557,700.45
  5. Step 5: Solve for x
    x = 752,557,700.45/28,249.47
  6. Step 6: Final answer
    x = 26,639.71

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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.