Home / 21,243.02-31,864.52-6,451.88

Finding the Fourth Proportional to 21,243.02, 31,864.52 and 6,451.88

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Solution

The fourth proportional to 21,243.02, 31,864.52 and 6,451.88 is: 9,677.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,243.02 : 31,864.52 = 6,451.88 : x
  2. Step 2: Convert to fraction form
    21,243.02/31,864.52 = 6,451.88/x
  3. Step 3: Cross multiply
    21,243.02x = 31,864.52 × 6,451.88
  4. Step 4: Simplify right side
    21,243.02x = 205,586,059.30
  5. Step 5: Solve for x
    x = 205,586,059.30/21,243.02
  6. Step 6: Final answer
    x = 9,677.82

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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.