Home / 28,679.92-39,611.41-19,104.04

Finding the Fourth Proportional to 28,679.92, 39,611.41 and 19,104.04

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Solution

The fourth proportional to 28,679.92, 39,611.41 and 19,104.04 is: 26,385.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,679.92 : 39,611.41 = 19,104.04 : x
  2. Step 2: Convert to fraction form
    28,679.92/39,611.41 = 19,104.04/x
  3. Step 3: Cross multiply
    28,679.92x = 39,611.41 × 19,104.04
  4. Step 4: Simplify right side
    28,679.92x = 756,737,961.10
  5. Step 5: Solve for x
    x = 756,737,961.10/28,679.92
  6. Step 6: Final answer
    x = 26,385.64

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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.