Home / 28,696.08-39,604.28-16,120.84

Finding the Fourth Proportional to 28,696.08, 39,604.28 and 16,120.84

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Solution

The fourth proportional to 28,696.08, 39,604.28 and 16,120.84 is: 22,248.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,696.08 : 39,604.28 = 16,120.84 : x
  2. Step 2: Convert to fraction form
    28,696.08/39,604.28 = 16,120.84/x
  3. Step 3: Cross multiply
    28,696.08x = 39,604.28 × 16,120.84
  4. Step 4: Simplify right side
    28,696.08x = 638,454,261.20
  5. Step 5: Solve for x
    x = 638,454,261.20/28,696.08
  6. Step 6: Final answer
    x = 22,248.83

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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.