Home / 21,185.33-31,765.53-8,038.62

Finding the Fourth Proportional to 21,185.33, 31,765.53 and 8,038.62

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Solution

The fourth proportional to 21,185.33, 31,765.53 and 8,038.62 is: 12,053.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,185.33 : 31,765.53 = 8,038.62 : x
  2. Step 2: Convert to fraction form
    21,185.33/31,765.53 = 8,038.62/x
  3. Step 3: Cross multiply
    21,185.33x = 31,765.53 × 8,038.62
  4. Step 4: Simplify right side
    21,185.33x = 255,351,201.42
  5. Step 5: Solve for x
    x = 255,351,201.42/21,185.33
  6. Step 6: Final answer
    x = 12,053.21

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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.