Home / 19,932.47-29,912.51-12,894.96

Finding the Fourth Proportional to 19,932.47, 29,912.51 and 12,894.96

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Solution

The fourth proportional to 19,932.47, 29,912.51 and 12,894.96 is: 19,351.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,932.47 : 29,912.51 = 12,894.96 : x
  2. Step 2: Convert to fraction form
    19,932.47/29,912.51 = 12,894.96/x
  3. Step 3: Cross multiply
    19,932.47x = 29,912.51 × 12,894.96
  4. Step 4: Simplify right side
    19,932.47x = 385,720,652.19
  5. Step 5: Solve for x
    x = 385,720,652.19/19,932.47
  6. Step 6: Final answer
    x = 19,351.38

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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.