Home / 35,408.72-53,113.21-13,221.86

Finding the Fourth Proportional to 35,408.72, 53,113.21 and 13,221.86

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Solution

The fourth proportional to 35,408.72, 53,113.21 and 13,221.86 is: 19,832.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,408.72 : 53,113.21 = 13,221.86 : x
  2. Step 2: Convert to fraction form
    35,408.72/53,113.21 = 13,221.86/x
  3. Step 3: Cross multiply
    35,408.72x = 53,113.21 × 13,221.86
  4. Step 4: Simplify right side
    35,408.72x = 702,255,128.15
  5. Step 5: Solve for x
    x = 702,255,128.15/35,408.72
  6. Step 6: Final answer
    x = 19,832.83

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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.