Home / 17,624.40-26,431.56-12,679.44

Finding the Fourth Proportional to 17,624.40, 26,431.56 and 12,679.44

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Solution

The fourth proportional to 17,624.40, 26,431.56 and 12,679.44 is: 19,015.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,624.40 : 26,431.56 = 12,679.44 : x
  2. Step 2: Convert to fraction form
    17,624.40/26,431.56 = 12,679.44/x
  3. Step 3: Cross multiply
    17,624.40x = 26,431.56 × 12,679.44
  4. Step 4: Simplify right side
    17,624.40x = 335,137,379.13
  5. Step 5: Solve for x
    x = 335,137,379.13/17,624.40
  6. Step 6: Final answer
    x = 19,015.53

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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.