Home / 28,611.96-42,917.94-10,131

Finding the Fourth Proportional to 28,611.96, 42,917.94 and 10,131

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Solution

The fourth proportional to 28,611.96, 42,917.94 and 10,131 is: 15,196.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,611.96 : 42,917.94 = 10,131 : x
  2. Step 2: Convert to fraction form
    28,611.96/42,917.94 = 10,131/x
  3. Step 3: Cross multiply
    28,611.96x = 42,917.94 × 10,131
  4. Step 4: Simplify right side
    28,611.96x = 434,801,650.14
  5. Step 5: Solve for x
    x = 434,801,650.14/28,611.96
  6. Step 6: Final answer
    x = 15,196.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.