Home / 20,121.19-30,181.79-6,973.57

Finding the Fourth Proportional to 20,121.19, 30,181.79 and 6,973.57

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Solution

The fourth proportional to 20,121.19, 30,181.79 and 6,973.57 is: 10,460.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,121.19 : 30,181.79 = 6,973.57 : x
  2. Step 2: Convert to fraction form
    20,121.19/30,181.79 = 6,973.57/x
  3. Step 3: Cross multiply
    20,121.19x = 30,181.79 × 6,973.57
  4. Step 4: Simplify right side
    20,121.19x = 210,474,825.29
  5. Step 5: Solve for x
    x = 210,474,825.29/20,121.19
  6. Step 6: Final answer
    x = 10,460.36

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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.