Home / 21,149.47-31,724.56-8,008.03

Finding the Fourth Proportional to 21,149.47, 31,724.56 and 8,008.03

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Solution

The fourth proportional to 21,149.47, 31,724.56 and 8,008.03 is: 12,012.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,149.47 : 31,724.56 = 8,008.03 : x
  2. Step 2: Convert to fraction form
    21,149.47/31,724.56 = 8,008.03/x
  3. Step 3: Cross multiply
    21,149.47x = 31,724.56 × 8,008.03
  4. Step 4: Simplify right side
    21,149.47x = 254,051,069.59
  5. Step 5: Solve for x
    x = 254,051,069.59/21,149.47
  6. Step 6: Final answer
    x = 12,012.17

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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.