Home / 28,933.97-39,917.12-18,858.87

Finding the Fourth Proportional to 28,933.97, 39,917.12 and 18,858.87

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Solution

The fourth proportional to 28,933.97, 39,917.12 and 18,858.87 is: 26,017.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,933.97 : 39,917.12 = 18,858.87 : x
  2. Step 2: Convert to fraction form
    28,933.97/39,917.12 = 18,858.87/x
  3. Step 3: Cross multiply
    28,933.97x = 39,917.12 × 18,858.87
  4. Step 4: Simplify right side
    28,933.97x = 752,791,682.56
  5. Step 5: Solve for x
    x = 752,791,682.56/28,933.97
  6. Step 6: Final answer
    x = 26,017.58

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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.