Home / 28,942.10-43,402.35-11,408.30

Finding the Fourth Proportional to 28,942.10, 43,402.35 and 11,408.30

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Solution

The fourth proportional to 28,942.10, 43,402.35 and 11,408.30 is: 17,108.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,942.10 : 43,402.35 = 11,408.30 : x
  2. Step 2: Convert to fraction form
    28,942.10/43,402.35 = 11,408.30/x
  3. Step 3: Cross multiply
    28,942.10x = 43,402.35 × 11,408.30
  4. Step 4: Simplify right side
    28,942.10x = 495,147,029.51
  5. Step 5: Solve for x
    x = 495,147,029.51/28,942.10
  6. Step 6: Final answer
    x = 17,108.19

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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.