Home / 21,164.69-31,743.80-5,583.53

Finding the Fourth Proportional to 21,164.69, 31,743.80 and 5,583.53

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Solution

The fourth proportional to 21,164.69, 31,743.80 and 5,583.53 is: 8,374.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,164.69 : 31,743.80 = 5,583.53 : x
  2. Step 2: Convert to fraction form
    21,164.69/31,743.80 = 5,583.53/x
  3. Step 3: Cross multiply
    21,164.69x = 31,743.80 × 5,583.53
  4. Step 4: Simplify right side
    21,164.69x = 177,242,531.99
  5. Step 5: Solve for x
    x = 177,242,531.99/21,164.69
  6. Step 6: Final answer
    x = 8,374.44

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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.