Home / 21,901.28-32,862.32-11,365.70

Finding the Fourth Proportional to 21,901.28, 32,862.32 and 11,365.70

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Solution

The fourth proportional to 21,901.28, 32,862.32 and 11,365.70 is: 17,053.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,901.28 : 32,862.32 = 11,365.70 : x
  2. Step 2: Convert to fraction form
    21,901.28/32,862.32 = 11,365.70/x
  3. Step 3: Cross multiply
    21,901.28x = 32,862.32 × 11,365.70
  4. Step 4: Simplify right side
    21,901.28x = 373,503,049.28
  5. Step 5: Solve for x
    x = 373,503,049.28/21,901.28
  6. Step 6: Final answer
    x = 17,053.94

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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.