Home / 34,721.87-51,969.15-18,887.36

Finding the Fourth Proportional to 34,721.87, 51,969.15 and 18,887.36

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Solution

The fourth proportional to 34,721.87, 51,969.15 and 18,887.36 is: 28,269.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,721.87 : 51,969.15 = 18,887.36 : x
  2. Step 2: Convert to fraction form
    34,721.87/51,969.15 = 18,887.36/x
  3. Step 3: Cross multiply
    34,721.87x = 51,969.15 × 18,887.36
  4. Step 4: Simplify right side
    34,721.87x = 981,559,785.10
  5. Step 5: Solve for x
    x = 981,559,785.10/34,721.87
  6. Step 6: Final answer
    x = 28,269.21

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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.