Home / 13,823.84-20,735.75-3,435.59

Finding the Fourth Proportional to 13,823.84, 20,735.75 and 3,435.59

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Solution

The fourth proportional to 13,823.84, 20,735.75 and 3,435.59 is: 5,153.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,823.84 : 20,735.75 = 3,435.59 : x
  2. Step 2: Convert to fraction form
    13,823.84/20,735.75 = 3,435.59/x
  3. Step 3: Cross multiply
    13,823.84x = 20,735.75 × 3,435.59
  4. Step 4: Simplify right side
    13,823.84x = 71,239,595.77
  5. Step 5: Solve for x
    x = 71,239,595.77/13,823.84
  6. Step 6: Final answer
    x = 5,153.39

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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.