Home / 21,930.36-32,887.77-7,136.52

Finding the Fourth Proportional to 21,930.36, 32,887.77 and 7,136.52

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Solution

The fourth proportional to 21,930.36, 32,887.77 and 7,136.52 is: 10,702.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,930.36 : 32,887.77 = 7,136.52 : x
  2. Step 2: Convert to fraction form
    21,930.36/32,887.77 = 7,136.52/x
  3. Step 3: Cross multiply
    21,930.36x = 32,887.77 × 7,136.52
  4. Step 4: Simplify right side
    21,930.36x = 234,704,228.36
  5. Step 5: Solve for x
    x = 234,704,228.36/21,930.36
  6. Step 6: Final answer
    x = 10,702.25

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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.