Home / 28,815.84-39,766.17-16,240.59

Finding the Fourth Proportional to 28,815.84, 39,766.17 and 16,240.59

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Solution

The fourth proportional to 28,815.84, 39,766.17 and 16,240.59 is: 22,412.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,815.84 : 39,766.17 = 16,240.59 : x
  2. Step 2: Convert to fraction form
    28,815.84/39,766.17 = 16,240.59/x
  3. Step 3: Cross multiply
    28,815.84x = 39,766.17 × 16,240.59
  4. Step 4: Simplify right side
    28,815.84x = 645,826,062.84
  5. Step 5: Solve for x
    x = 645,826,062.84/28,815.84
  6. Step 6: Final answer
    x = 22,412.19

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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.