Home / 20,370.42-30,557.79-8,684.82

Finding the Fourth Proportional to 20,370.42, 30,557.79 and 8,684.82

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Solution

The fourth proportional to 20,370.42, 30,557.79 and 8,684.82 is: 13,028.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,370.42 : 30,557.79 = 8,684.82 : x
  2. Step 2: Convert to fraction form
    20,370.42/30,557.79 = 8,684.82/x
  3. Step 3: Cross multiply
    20,370.42x = 30,557.79 × 8,684.82
  4. Step 4: Simplify right side
    20,370.42x = 265,388,905.75
  5. Step 5: Solve for x
    x = 265,388,905.75/20,370.42
  6. Step 6: Final answer
    x = 13,028.15

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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.