Home / 34,131.21-51,177.54-14,129.40

Finding the Fourth Proportional to 34,131.21, 51,177.54 and 14,129.40

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Solution

The fourth proportional to 34,131.21, 51,177.54 and 14,129.40 is: 21,186.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,131.21 : 51,177.54 = 14,129.40 : x
  2. Step 2: Convert to fraction form
    34,131.21/51,177.54 = 14,129.40/x
  3. Step 3: Cross multiply
    34,131.21x = 51,177.54 × 14,129.40
  4. Step 4: Simplify right side
    34,131.21x = 723,107,933.68
  5. Step 5: Solve for x
    x = 723,107,933.68/34,131.21
  6. Step 6: Final answer
    x = 21,186.12

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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.