Home / 16,833.40-25,213.38-13,878.52

Finding the Fourth Proportional to 16,833.40, 25,213.38 and 13,878.52

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Solution

The fourth proportional to 16,833.40, 25,213.38 and 13,878.52 is: 20,787.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,833.40 : 25,213.38 = 13,878.52 : x
  2. Step 2: Convert to fraction form
    16,833.40/25,213.38 = 13,878.52/x
  3. Step 3: Cross multiply
    16,833.40x = 25,213.38 × 13,878.52
  4. Step 4: Simplify right side
    16,833.40x = 349,924,398.60
  5. Step 5: Solve for x
    x = 349,924,398.60/16,833.40
  6. Step 6: Final answer
    x = 20,787.51

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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.