Home / 20,734.26-31,113.44-8,725.53

Finding the Fourth Proportional to 20,734.26, 31,113.44 and 8,725.53

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Solution

The fourth proportional to 20,734.26, 31,113.44 and 8,725.53 is: 13,093.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,734.26 : 31,113.44 = 8,725.53 : x
  2. Step 2: Convert to fraction form
    20,734.26/31,113.44 = 8,725.53/x
  3. Step 3: Cross multiply
    20,734.26x = 31,113.44 × 8,725.53
  4. Step 4: Simplify right side
    20,734.26x = 271,481,210.50
  5. Step 5: Solve for x
    x = 271,481,210.50/20,734.26
  6. Step 6: Final answer
    x = 13,093.36

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1.5x scale

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.