Home / 28,411.57-39,208.49-15,834.97

Finding the Fourth Proportional to 28,411.57, 39,208.49 and 15,834.97

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Solution

The fourth proportional to 28,411.57, 39,208.49 and 15,834.97 is: 21,852.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,411.57 : 39,208.49 = 15,834.97 : x
  2. Step 2: Convert to fraction form
    28,411.57/39,208.49 = 15,834.97/x
  3. Step 3: Cross multiply
    28,411.57x = 39,208.49 × 15,834.97
  4. Step 4: Simplify right side
    28,411.57x = 620,865,262.90
  5. Step 5: Solve for x
    x = 620,865,262.90/28,411.57
  6. Step 6: Final answer
    x = 21,852.55

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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.