Home / 17,980.98-24,778.68-12,936.30

Finding the Fourth Proportional to 17,980.98, 24,778.68 and 12,936.30

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Solution

The fourth proportional to 17,980.98, 24,778.68 and 12,936.30 is: 17,826.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,980.98 : 24,778.68 = 12,936.30 : x
  2. Step 2: Convert to fraction form
    17,980.98/24,778.68 = 12,936.30/x
  3. Step 3: Cross multiply
    17,980.98x = 24,778.68 × 12,936.30
  4. Step 4: Simplify right side
    17,980.98x = 320,544,438.08
  5. Step 5: Solve for x
    x = 320,544,438.08/17,980.98
  6. Step 6: Final answer
    x = 17,826.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.