Home / 13,750.25-20,624.15-3,889.31

Finding the Fourth Proportional to 13,750.25, 20,624.15 and 3,889.31

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Solution

The fourth proportional to 13,750.25, 20,624.15 and 3,889.31 is: 5,833.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,750.25 : 20,624.15 = 3,889.31 : x
  2. Step 2: Convert to fraction form
    13,750.25/20,624.15 = 3,889.31/x
  3. Step 3: Cross multiply
    13,750.25x = 20,624.15 × 3,889.31
  4. Step 4: Simplify right side
    13,750.25x = 80,213,590.27
  5. Step 5: Solve for x
    x = 80,213,590.27/13,750.25
  6. Step 6: Final answer
    x = 5,833.61

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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.