Home / 22,453.81-33,658.71-19,129.57

Finding the Fourth Proportional to 22,453.81, 33,658.71 and 19,129.57

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Solution

The fourth proportional to 22,453.81, 33,658.71 and 19,129.57 is: 28,675.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,453.81 : 33,658.71 = 19,129.57 : x
  2. Step 2: Convert to fraction form
    22,453.81/33,658.71 = 19,129.57/x
  3. Step 3: Cross multiply
    22,453.81x = 33,658.71 × 19,129.57
  4. Step 4: Simplify right side
    22,453.81x = 643,876,649.05
  5. Step 5: Solve for x
    x = 643,876,649.05/22,453.81
  6. Step 6: Final answer
    x = 28,675.61

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1.5x scale

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.