Home / 20,830.42-31,239.14-6,040.36

Finding the Fourth Proportional to 20,830.42, 31,239.14 and 6,040.36

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Solution

The fourth proportional to 20,830.42, 31,239.14 and 6,040.36 is: 9,058.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,830.42 : 31,239.14 = 6,040.36 : x
  2. Step 2: Convert to fraction form
    20,830.42/31,239.14 = 6,040.36/x
  3. Step 3: Cross multiply
    20,830.42x = 31,239.14 × 6,040.36
  4. Step 4: Simplify right side
    20,830.42x = 188,695,651.69
  5. Step 5: Solve for x
    x = 188,695,651.69/20,830.42
  6. Step 6: Final answer
    x = 9,058.66

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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.