Home / 21,146.06-31,723.96-6,355.26

Finding the Fourth Proportional to 21,146.06, 31,723.96 and 6,355.26

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Solution

The fourth proportional to 21,146.06, 31,723.96 and 6,355.26 is: 9,534.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,146.06 : 31,723.96 = 6,355.26 : x
  2. Step 2: Convert to fraction form
    21,146.06/31,723.96 = 6,355.26/x
  3. Step 3: Cross multiply
    21,146.06x = 31,723.96 × 6,355.26
  4. Step 4: Simplify right side
    21,146.06x = 201,614,014.03
  5. Step 5: Solve for x
    x = 201,614,014.03/21,146.06
  6. Step 6: Final answer
    x = 9,534.35

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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.