Home / 28,729.49-39,642.41-16,151.81

Finding the Fourth Proportional to 28,729.49, 39,642.41 and 16,151.81

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Solution

The fourth proportional to 28,729.49, 39,642.41 and 16,151.81 is: 22,287.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,729.49 : 39,642.41 = 16,151.81 : x
  2. Step 2: Convert to fraction form
    28,729.49/39,642.41 = 16,151.81/x
  3. Step 3: Cross multiply
    28,729.49x = 39,642.41 × 16,151.81
  4. Step 4: Simplify right side
    28,729.49x = 640,296,516.43
  5. Step 5: Solve for x
    x = 640,296,516.43/28,729.49
  6. Step 6: Final answer
    x = 22,287.09

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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.