Home / 17,983.57-26,961.81-12,421.03

Finding the Fourth Proportional to 17,983.57, 26,961.81 and 12,421.03

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Solution

The fourth proportional to 17,983.57, 26,961.81 and 12,421.03 is: 18,622.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,983.57 : 26,961.81 = 12,421.03 : x
  2. Step 2: Convert to fraction form
    17,983.57/26,961.81 = 12,421.03/x
  3. Step 3: Cross multiply
    17,983.57x = 26,961.81 × 12,421.03
  4. Step 4: Simplify right side
    17,983.57x = 334,893,450.86
  5. Step 5: Solve for x
    x = 334,893,450.86/17,983.57
  6. Step 6: Final answer
    x = 18,622.19

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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.