Home / 21,100.23-31,654.44-6,308.82

Finding the Fourth Proportional to 21,100.23, 31,654.44 and 6,308.82

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Solution

The fourth proportional to 21,100.23, 31,654.44 and 6,308.82 is: 9,464.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,100.23 : 31,654.44 = 6,308.82 : x
  2. Step 2: Convert to fraction form
    21,100.23/31,654.44 = 6,308.82/x
  3. Step 3: Cross multiply
    21,100.23x = 31,654.44 × 6,308.82
  4. Step 4: Simplify right side
    21,100.23x = 199,702,164.16
  5. Step 5: Solve for x
    x = 199,702,164.16/21,100.23
  6. Step 6: Final answer
    x = 9,464.45

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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.