Home / 19,886.42-29,835.20-6,739.79

Finding the Fourth Proportional to 19,886.42, 29,835.20 and 6,739.79

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Solution

The fourth proportional to 19,886.42, 29,835.20 and 6,739.79 is: 10,111.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,886.42 : 29,835.20 = 6,739.79 : x
  2. Step 2: Convert to fraction form
    19,886.42/29,835.20 = 6,739.79/x
  3. Step 3: Cross multiply
    19,886.42x = 29,835.20 × 6,739.79
  4. Step 4: Simplify right side
    19,886.42x = 201,082,850.28
  5. Step 5: Solve for x
    x = 201,082,850.28/19,886.42
  6. Step 6: Final answer
    x = 10,111.56

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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.