Home / 20,170.77-30,252.06-12,670.98

Finding the Fourth Proportional to 20,170.77, 30,252.06 and 12,670.98

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Solution

The fourth proportional to 20,170.77, 30,252.06 and 12,670.98 is: 19,003.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,170.77 : 30,252.06 = 12,670.98 : x
  2. Step 2: Convert to fraction form
    20,170.77/30,252.06 = 12,670.98/x
  3. Step 3: Cross multiply
    20,170.77x = 30,252.06 × 12,670.98
  4. Step 4: Simplify right side
    20,170.77x = 383,323,247.22
  5. Step 5: Solve for x
    x = 383,323,247.22/20,170.77
  6. Step 6: Final answer
    x = 19,003.90

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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.