Home / 20,830.49-31,239.31-6,040.50

Finding the Fourth Proportional to 20,830.49, 31,239.31 and 6,040.50

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Solution

The fourth proportional to 20,830.49, 31,239.31 and 6,040.50 is: 9,058.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,830.49 : 31,239.31 = 6,040.50 : x
  2. Step 2: Convert to fraction form
    20,830.49/31,239.31 = 6,040.50/x
  3. Step 3: Cross multiply
    20,830.49x = 31,239.31 × 6,040.50
  4. Step 4: Simplify right side
    20,830.49x = 188,701,036.95
  5. Step 5: Solve for x
    x = 188,701,036.95/20,830.49
  6. Step 6: Final answer
    x = 9,058.89

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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.