Home / 34,138.05-51,223.32-15,423.81

Finding the Fourth Proportional to 34,138.05, 51,223.32 and 15,423.81

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Solution

The fourth proportional to 34,138.05, 51,223.32 and 15,423.81 is: 23,143.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,138.05 : 51,223.32 = 15,423.81 : x
  2. Step 2: Convert to fraction form
    34,138.05/51,223.32 = 15,423.81/x
  3. Step 3: Cross multiply
    34,138.05x = 51,223.32 × 15,423.81
  4. Step 4: Simplify right side
    34,138.05x = 790,058,755.25
  5. Step 5: Solve for x
    x = 790,058,755.25/34,138.05
  6. Step 6: Final answer
    x = 23,143.05

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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.