Home / 28,644.48-39,529.62-15,898.55

Finding the Fourth Proportional to 28,644.48, 39,529.62 and 15,898.55

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Solution

The fourth proportional to 28,644.48, 39,529.62 and 15,898.55 is: 21,940.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,644.48 : 39,529.62 = 15,898.55 : x
  2. Step 2: Convert to fraction form
    28,644.48/39,529.62 = 15,898.55/x
  3. Step 3: Cross multiply
    28,644.48x = 39,529.62 × 15,898.55
  4. Step 4: Simplify right side
    28,644.48x = 628,463,442.40
  5. Step 5: Solve for x
    x = 628,463,442.40/28,644.48
  6. Step 6: Final answer
    x = 21,940.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.