Home / 20,941.47-31,407.33-6,146.41

Finding the Fourth Proportional to 20,941.47, 31,407.33 and 6,146.41

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Solution

The fourth proportional to 20,941.47, 31,407.33 and 6,146.41 is: 9,218.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,941.47 : 31,407.33 = 6,146.41 : x
  2. Step 2: Convert to fraction form
    20,941.47/31,407.33 = 6,146.41/x
  3. Step 3: Cross multiply
    20,941.47x = 31,407.33 × 6,146.41
  4. Step 4: Simplify right side
    20,941.47x = 193,042,327.19
  5. Step 5: Solve for x
    x = 193,042,327.19/20,941.47
  6. Step 6: Final answer
    x = 9,218.18

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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.