Home / 28,611.62-39,494.78-16,678.70

Finding the Fourth Proportional to 28,611.62, 39,494.78 and 16,678.70

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Solution

The fourth proportional to 28,611.62, 39,494.78 and 16,678.70 is: 23,022.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,611.62 : 39,494.78 = 16,678.70 : x
  2. Step 2: Convert to fraction form
    28,611.62/39,494.78 = 16,678.70/x
  3. Step 3: Cross multiply
    28,611.62x = 39,494.78 × 16,678.70
  4. Step 4: Simplify right side
    28,611.62x = 658,721,587.19
  5. Step 5: Solve for x
    x = 658,721,587.19/28,611.62
  6. Step 6: Final answer
    x = 23,022.87

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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.