Home / 24,399.21-33,658.55-15,431.61

Finding the Fourth Proportional to 24,399.21, 33,658.55 and 15,431.61

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Solution

The fourth proportional to 24,399.21, 33,658.55 and 15,431.61 is: 21,287.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,399.21 : 33,658.55 = 15,431.61 : x
  2. Step 2: Convert to fraction form
    24,399.21/33,658.55 = 15,431.61/x
  3. Step 3: Cross multiply
    24,399.21x = 33,658.55 × 15,431.61
  4. Step 4: Simplify right side
    24,399.21x = 519,405,539.61
  5. Step 5: Solve for x
    x = 519,405,539.61/24,399.21
  6. Step 6: Final answer
    x = 21,287.80

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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.