Home / 21,806.10-30,090.71-12,374.66

Finding the Fourth Proportional to 21,806.10, 30,090.71 and 12,374.66

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Solution

The fourth proportional to 21,806.10, 30,090.71 and 12,374.66 is: 17,076.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,806.10 : 30,090.71 = 12,374.66 : x
  2. Step 2: Convert to fraction form
    21,806.10/30,090.71 = 12,374.66/x
  3. Step 3: Cross multiply
    21,806.10x = 30,090.71 × 12,374.66
  4. Step 4: Simplify right side
    21,806.10x = 372,362,243.54
  5. Step 5: Solve for x
    x = 372,362,243.54/21,806.10
  6. Step 6: Final answer
    x = 17,076.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.