Home / 34,136.13-51,203.69-20,813.05

Finding the Fourth Proportional to 34,136.13, 51,203.69 and 20,813.05

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Solution

The fourth proportional to 34,136.13, 51,203.69 and 20,813.05 is: 31,219.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,136.13 : 51,203.69 = 20,813.05 : x
  2. Step 2: Convert to fraction form
    34,136.13/51,203.69 = 20,813.05/x
  3. Step 3: Cross multiply
    34,136.13x = 51,203.69 × 20,813.05
  4. Step 4: Simplify right side
    34,136.13x = 1,065,705,115.22
  5. Step 5: Solve for x
    x = 1,065,705,115.22/34,136.13
  6. Step 6: Final answer
    x = 31,219.27

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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.