Home / 21,954.78-32,922.45-15,772.86

Finding the Fourth Proportional to 21,954.78, 32,922.45 and 15,772.86

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Solution

The fourth proportional to 21,954.78, 32,922.45 and 15,772.86 is: 23,652.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,954.78 : 32,922.45 = 15,772.86 : x
  2. Step 2: Convert to fraction form
    21,954.78/32,922.45 = 15,772.86/x
  3. Step 3: Cross multiply
    21,954.78x = 32,922.45 × 15,772.86
  4. Step 4: Simplify right side
    21,954.78x = 519,281,194.71
  5. Step 5: Solve for x
    x = 519,281,194.71/21,954.78
  6. Step 6: Final answer
    x = 23,652.31

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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.