Home / 21,272.10-31,927.82-10,749.53

Finding the Fourth Proportional to 21,272.10, 31,927.82 and 10,749.53

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Solution

The fourth proportional to 21,272.10, 31,927.82 and 10,749.53 is: 16,134.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,272.10 : 31,927.82 = 10,749.53 : x
  2. Step 2: Convert to fraction form
    21,272.10/31,927.82 = 10,749.53/x
  3. Step 3: Cross multiply
    21,272.10x = 31,927.82 × 10,749.53
  4. Step 4: Simplify right side
    21,272.10x = 343,208,845.54
  5. Step 5: Solve for x
    x = 343,208,845.54/21,272.10
  6. Step 6: Final answer
    x = 16,134.22

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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.