Home / 20,596.32-30,896.10-8,115.48

Finding the Fourth Proportional to 20,596.32, 30,896.10 and 8,115.48

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Solution

The fourth proportional to 20,596.32, 30,896.10 and 8,115.48 is: 12,173.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,596.32 : 30,896.10 = 8,115.48 : x
  2. Step 2: Convert to fraction form
    20,596.32/30,896.10 = 8,115.48/x
  3. Step 3: Cross multiply
    20,596.32x = 30,896.10 × 8,115.48
  4. Step 4: Simplify right side
    20,596.32x = 250,736,681.63
  5. Step 5: Solve for x
    x = 250,736,681.63/20,596.32
  6. Step 6: Final answer
    x = 12,173.86

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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.