Home / 20,255.55-30,364.84-7,100.74

Finding the Fourth Proportional to 20,255.55, 30,364.84 and 7,100.74

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Solution

The fourth proportional to 20,255.55, 30,364.84 and 7,100.74 is: 10,644.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,255.55 : 30,364.84 = 7,100.74 : x
  2. Step 2: Convert to fraction form
    20,255.55/30,364.84 = 7,100.74/x
  3. Step 3: Cross multiply
    20,255.55x = 30,364.84 × 7,100.74
  4. Step 4: Simplify right side
    20,255.55x = 215,612,833.98
  5. Step 5: Solve for x
    x = 215,612,833.98/20,255.55
  6. Step 6: Final answer
    x = 10,644.63

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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.