Home / 19,669.80-29,511.98-9,145.47

Finding the Fourth Proportional to 19,669.80, 29,511.98 and 9,145.47

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Solution

The fourth proportional to 19,669.80, 29,511.98 and 9,145.47 is: 13,721.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,669.80 : 29,511.98 = 9,145.47 : x
  2. Step 2: Convert to fraction form
    19,669.80/29,511.98 = 9,145.47/x
  3. Step 3: Cross multiply
    19,669.80x = 29,511.98 × 9,145.47
  4. Step 4: Simplify right side
    19,669.80x = 269,900,927.73
  5. Step 5: Solve for x
    x = 269,900,927.73/19,669.80
  6. Step 6: Final answer
    x = 13,721.59

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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.