Home / 21,188.93-31,787.51-8,050.55

Finding the Fourth Proportional to 21,188.93, 31,787.51 and 8,050.55

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Solution

The fourth proportional to 21,188.93, 31,787.51 and 8,050.55 is: 12,077.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,188.93 : 31,787.51 = 8,050.55 : x
  2. Step 2: Convert to fraction form
    21,188.93/31,787.51 = 8,050.55/x
  3. Step 3: Cross multiply
    21,188.93x = 31,787.51 × 8,050.55
  4. Step 4: Simplify right side
    21,188.93x = 255,906,739.44
  5. Step 5: Solve for x
    x = 255,906,739.44/21,188.93
  6. Step 6: Final answer
    x = 12,077.38

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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.