Home / 21,146.22-31,716.80-5,565.06

Finding the Fourth Proportional to 21,146.22, 31,716.80 and 5,565.06

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Solution

The fourth proportional to 21,146.22, 31,716.80 and 5,565.06 is: 8,346.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,146.22 : 31,716.80 = 5,565.06 : x
  2. Step 2: Convert to fraction form
    21,146.22/31,716.80 = 5,565.06/x
  3. Step 3: Cross multiply
    21,146.22x = 31,716.80 × 5,565.06
  4. Step 4: Simplify right side
    21,146.22x = 176,505,895.01
  5. Step 5: Solve for x
    x = 176,505,895.01/21,146.22
  6. Step 6: Final answer
    x = 8,346.92

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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.