Home / 21,047.23-31,575.71-6,255.82

Finding the Fourth Proportional to 21,047.23, 31,575.71 and 6,255.82

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Solution

The fourth proportional to 21,047.23, 31,575.71 and 6,255.82 is: 9,385.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,047.23 : 31,575.71 = 6,255.82 : x
  2. Step 2: Convert to fraction form
    21,047.23/31,575.71 = 6,255.82/x
  3. Step 3: Cross multiply
    21,047.23x = 31,575.71 × 6,255.82
  4. Step 4: Simplify right side
    21,047.23x = 197,531,958.13
  5. Step 5: Solve for x
    x = 197,531,958.13/21,047.23
  6. Step 6: Final answer
    x = 9,385.18

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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.