Home / 20,483.45-30,725.27-7,156.39

Finding the Fourth Proportional to 20,483.45, 30,725.27 and 7,156.39

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Solution

The fourth proportional to 20,483.45, 30,725.27 and 7,156.39 is: 10,734.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,483.45 : 30,725.27 = 7,156.39 : x
  2. Step 2: Convert to fraction form
    20,483.45/30,725.27 = 7,156.39/x
  3. Step 3: Cross multiply
    20,483.45x = 30,725.27 × 7,156.39
  4. Step 4: Simplify right side
    20,483.45x = 219,881,861.35
  5. Step 5: Solve for x
    x = 219,881,861.35/20,483.45
  6. Step 6: Final answer
    x = 10,734.61

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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.