Home / 28,335.38-39,104.13-16,396.40

Finding the Fourth Proportional to 28,335.38, 39,104.13 and 16,396.40

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Solution

The fourth proportional to 28,335.38, 39,104.13 and 16,396.40 is: 22,627.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,335.38 : 39,104.13 = 16,396.40 : x
  2. Step 2: Convert to fraction form
    28,335.38/39,104.13 = 16,396.40/x
  3. Step 3: Cross multiply
    28,335.38x = 39,104.13 × 16,396.40
  4. Step 4: Simplify right side
    28,335.38x = 641,166,957.13
  5. Step 5: Solve for x
    x = 641,166,957.13/28,335.38
  6. Step 6: Final answer
    x = 22,627.79

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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.