Home / 19,136.32-28,706.13-5,285.32

Finding the Fourth Proportional to 19,136.32, 28,706.13 and 5,285.32

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Solution

The fourth proportional to 19,136.32, 28,706.13 and 5,285.32 is: 7,928.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,136.32 : 28,706.13 = 5,285.32 : x
  2. Step 2: Convert to fraction form
    19,136.32/28,706.13 = 5,285.32/x
  3. Step 3: Cross multiply
    19,136.32x = 28,706.13 × 5,285.32
  4. Step 4: Simplify right side
    19,136.32x = 151,721,083.01
  5. Step 5: Solve for x
    x = 151,721,083.01/19,136.32
  6. Step 6: Final answer
    x = 7,928.44

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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.