Home / 20,641.42-30,951.19-8,160.94

Finding the Fourth Proportional to 20,641.42, 30,951.19 and 8,160.94

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Solution

The fourth proportional to 20,641.42, 30,951.19 and 8,160.94 is: 12,237.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,641.42 : 30,951.19 = 8,160.94 : x
  2. Step 2: Convert to fraction form
    20,641.42/30,951.19 = 8,160.94/x
  3. Step 3: Cross multiply
    20,641.42x = 30,951.19 × 8,160.94
  4. Step 4: Simplify right side
    20,641.42x = 252,590,804.52
  5. Step 5: Solve for x
    x = 252,590,804.52/20,641.42
  6. Step 6: Final answer
    x = 12,237.08

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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.