Home / 28,934.97-39,918.49-18,859.87

Finding the Fourth Proportional to 28,934.97, 39,918.49 and 18,859.87

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Solution

The fourth proportional to 28,934.97, 39,918.49 and 18,859.87 is: 26,018.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,934.97 : 39,918.49 = 18,859.87 : x
  2. Step 2: Convert to fraction form
    28,934.97/39,918.49 = 18,859.87/x
  3. Step 3: Cross multiply
    28,934.97x = 39,918.49 × 18,859.87
  4. Step 4: Simplify right side
    28,934.97x = 752,857,532.00
  5. Step 5: Solve for x
    x = 752,857,532.00/28,934.97
  6. Step 6: Final answer
    x = 26,018.95

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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.