Home / 28,196.70-38,911.43-16,259.87

Finding the Fourth Proportional to 28,196.70, 38,911.43 and 16,259.87

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Solution

The fourth proportional to 28,196.70, 38,911.43 and 16,259.87 is: 22,438.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,196.70 : 38,911.43 = 16,259.87 : x
  2. Step 2: Convert to fraction form
    28,196.70/38,911.43 = 16,259.87/x
  3. Step 3: Cross multiply
    28,196.70x = 38,911.43 × 16,259.87
  4. Step 4: Simplify right side
    28,196.70x = 632,694,793.31
  5. Step 5: Solve for x
    x = 632,694,793.31/28,196.70
  6. Step 6: Final answer
    x = 22,438.61

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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.