Home / 13,823.31-20,734.95-3,435.06

Finding the Fourth Proportional to 13,823.31, 20,734.95 and 3,435.06

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Solution

The fourth proportional to 13,823.31, 20,734.95 and 3,435.06 is: 5,152.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,823.31 : 20,734.95 = 3,435.06 : x
  2. Step 2: Convert to fraction form
    13,823.31/20,734.95 = 3,435.06/x
  3. Step 3: Cross multiply
    13,823.31x = 20,734.95 × 3,435.06
  4. Step 4: Simplify right side
    13,823.31x = 71,225,797.35
  5. Step 5: Solve for x
    x = 71,225,797.35/13,823.31
  6. Step 6: Final answer
    x = 5,152.59

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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.