Home / 21,232.64-31,849.68-5,650.28

Finding the Fourth Proportional to 21,232.64, 31,849.68 and 5,650.28

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Solution

The fourth proportional to 21,232.64, 31,849.68 and 5,650.28 is: 8,475.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,232.64 : 31,849.68 = 5,650.28 : x
  2. Step 2: Convert to fraction form
    21,232.64/31,849.68 = 5,650.28/x
  3. Step 3: Cross multiply
    21,232.64x = 31,849.68 × 5,650.28
  4. Step 4: Simplify right side
    21,232.64x = 179,959,710.72
  5. Step 5: Solve for x
    x = 179,959,710.72/21,232.64
  6. Step 6: Final answer
    x = 8,475.62

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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.