Home / 13,431.21-20,139.86-6,029.29

Finding the Fourth Proportional to 13,431.21, 20,139.86 and 6,029.29

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Solution

The fourth proportional to 13,431.21, 20,139.86 and 6,029.29 is: 9,040.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,431.21 : 20,139.86 = 6,029.29 : x
  2. Step 2: Convert to fraction form
    13,431.21/20,139.86 = 6,029.29/x
  3. Step 3: Cross multiply
    13,431.21x = 20,139.86 × 6,029.29
  4. Step 4: Simplify right side
    13,431.21x = 121,429,026.35
  5. Step 5: Solve for x
    x = 121,429,026.35/13,431.21
  6. Step 6: Final answer
    x = 9,040.81

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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.