Home / 21,905.29-32,868.31-11,369.69

Finding the Fourth Proportional to 21,905.29, 32,868.31 and 11,369.69

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Solution

The fourth proportional to 21,905.29, 32,868.31 and 11,369.69 is: 17,059.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,905.29 : 32,868.31 = 11,369.69 : x
  2. Step 2: Convert to fraction form
    21,905.29/32,868.31 = 11,369.69/x
  3. Step 3: Cross multiply
    21,905.29x = 32,868.31 × 11,369.69
  4. Step 4: Simplify right side
    21,905.29x = 373,702,495.52
  5. Step 5: Solve for x
    x = 373,702,495.52/21,905.29
  6. Step 6: Final answer
    x = 17,059.92

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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.