Home / 20,095.97-30,139.85-7,611.69

Finding the Fourth Proportional to 20,095.97, 30,139.85 and 7,611.69

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Solution

The fourth proportional to 20,095.97, 30,139.85 and 7,611.69 is: 11,415.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,095.97 : 30,139.85 = 7,611.69 : x
  2. Step 2: Convert to fraction form
    20,095.97/30,139.85 = 7,611.69/x
  3. Step 3: Cross multiply
    20,095.97x = 30,139.85 × 7,611.69
  4. Step 4: Simplify right side
    20,095.97x = 229,415,114.55
  5. Step 5: Solve for x
    x = 229,415,114.55/20,095.97
  6. Step 6: Final answer
    x = 11,415.98

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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.