Home / 21,795.06-32,705.21-9,143.69

Finding the Fourth Proportional to 21,795.06, 32,705.21 and 9,143.69

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Solution

The fourth proportional to 21,795.06, 32,705.21 and 9,143.69 is: 13,720.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,795.06 : 32,705.21 = 9,143.69 : x
  2. Step 2: Convert to fraction form
    21,795.06/32,705.21 = 9,143.69/x
  3. Step 3: Cross multiply
    21,795.06x = 32,705.21 × 9,143.69
  4. Step 4: Simplify right side
    21,795.06x = 299,046,092.38
  5. Step 5: Solve for x
    x = 299,046,092.38/21,795.06
  6. Step 6: Final answer
    x = 13,720.82

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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.