Home / 20,121.06-30,191.58-9,035.58

Finding the Fourth Proportional to 20,121.06, 30,191.58 and 9,035.58

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Solution

The fourth proportional to 20,121.06, 30,191.58 and 9,035.58 is: 13,557.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,121.06 : 30,191.58 = 9,035.58 : x
  2. Step 2: Convert to fraction form
    20,121.06/30,191.58 = 9,035.58/x
  3. Step 3: Cross multiply
    20,121.06x = 30,191.58 × 9,035.58
  4. Step 4: Simplify right side
    20,121.06x = 272,798,436.42
  5. Step 5: Solve for x
    x = 272,798,436.42/20,121.06
  6. Step 6: Final answer
    x = 13,557.86

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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.