Home / 28,644.91-39,529.99-15,898.09

Finding the Fourth Proportional to 28,644.91, 39,529.99 and 15,898.09

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Solution

The fourth proportional to 28,644.91, 39,529.99 and 15,898.09 is: 21,939.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,644.91 : 39,529.99 = 15,898.09 : x
  2. Step 2: Convert to fraction form
    28,644.91/39,529.99 = 15,898.09/x
  3. Step 3: Cross multiply
    28,644.91x = 39,529.99 × 15,898.09
  4. Step 4: Simplify right side
    28,644.91x = 628,451,475.27
  5. Step 5: Solve for x
    x = 628,451,475.27/28,644.91
  6. Step 6: Final answer
    x = 21,939.38

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1.5x scale

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.