Home / 20,250.87-30,376.35-7,100.25

Finding the Fourth Proportional to 20,250.87, 30,376.35 and 7,100.25

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Solution

The fourth proportional to 20,250.87, 30,376.35 and 7,100.25 is: 10,650.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,250.87 : 30,376.35 = 7,100.25 : x
  2. Step 2: Convert to fraction form
    20,250.87/30,376.35 = 7,100.25/x
  3. Step 3: Cross multiply
    20,250.87x = 30,376.35 × 7,100.25
  4. Step 4: Simplify right side
    20,250.87x = 215,679,679.09
  5. Step 5: Solve for x
    x = 215,679,679.09/20,250.87
  6. Step 6: Final answer
    x = 10,650.39

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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.