Home / 21,905.60-32,846.40-10,787.84

Finding the Fourth Proportional to 21,905.60, 32,846.40 and 10,787.84

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Solution

The fourth proportional to 21,905.60, 32,846.40 and 10,787.84 is: 16,175.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,905.60 : 32,846.40 = 10,787.84 : x
  2. Step 2: Convert to fraction form
    21,905.60/32,846.40 = 10,787.84/x
  3. Step 3: Cross multiply
    21,905.60x = 32,846.40 × 10,787.84
  4. Step 4: Simplify right side
    21,905.60x = 354,341,707.78
  5. Step 5: Solve for x
    x = 354,341,707.78/21,905.60
  6. Step 6: Final answer
    x = 16,175.85

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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.