Home / 21,247.98-31,842.81-10,837.86

Finding the Fourth Proportional to 21,247.98, 31,842.81 and 10,837.86

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Solution

The fourth proportional to 21,247.98, 31,842.81 and 10,837.86 is: 16,241.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,247.98 : 31,842.81 = 10,837.86 : x
  2. Step 2: Convert to fraction form
    21,247.98/31,842.81 = 10,837.86/x
  3. Step 3: Cross multiply
    21,247.98x = 31,842.81 × 10,837.86
  4. Step 4: Simplify right side
    21,247.98x = 345,107,916.79
  5. Step 5: Solve for x
    x = 345,107,916.79/21,247.98
  6. Step 6: Final answer
    x = 16,241.92

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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.