Home / 34,186.40-51,302.38-13,143.81

Finding the Fourth Proportional to 34,186.40, 51,302.38 and 13,143.81

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Solution

The fourth proportional to 34,186.40, 51,302.38 and 13,143.81 is: 19,724.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,186.40 : 51,302.38 = 13,143.81 : x
  2. Step 2: Convert to fraction form
    34,186.40/51,302.38 = 13,143.81/x
  3. Step 3: Cross multiply
    34,186.40x = 51,302.38 × 13,143.81
  4. Step 4: Simplify right side
    34,186.40x = 674,308,735.27
  5. Step 5: Solve for x
    x = 674,308,735.27/34,186.40
  6. Step 6: Final answer
    x = 19,724.47

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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.