Home / 21,327.14-31,985.48-9,474.38

Finding the Fourth Proportional to 21,327.14, 31,985.48 and 9,474.38

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Solution

The fourth proportional to 21,327.14, 31,985.48 and 9,474.38 is: 14,209.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,327.14 : 31,985.48 = 9,474.38 : x
  2. Step 2: Convert to fraction form
    21,327.14/31,985.48 = 9,474.38/x
  3. Step 3: Cross multiply
    21,327.14x = 31,985.48 × 9,474.38
  4. Step 4: Simplify right side
    21,327.14x = 303,042,592.00
  5. Step 5: Solve for x
    x = 303,042,592.00/21,327.14
  6. Step 6: Final answer
    x = 14,209.25

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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.