Home / 21,322.82-31,991.31-6,531.89

Finding the Fourth Proportional to 21,322.82, 31,991.31 and 6,531.89

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Solution

The fourth proportional to 21,322.82, 31,991.31 and 6,531.89 is: 9,800.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,322.82 : 31,991.31 = 6,531.89 : x
  2. Step 2: Convert to fraction form
    21,322.82/31,991.31 = 6,531.89/x
  3. Step 3: Cross multiply
    21,322.82x = 31,991.31 × 6,531.89
  4. Step 4: Simplify right side
    21,322.82x = 208,963,557.92
  5. Step 5: Solve for x
    x = 208,963,557.92/21,322.82
  6. Step 6: Final answer
    x = 9,800.00

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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.