Home / 28,201.23-38,917.71-16,871.21

Finding the Fourth Proportional to 28,201.23, 38,917.71 and 16,871.21

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Solution

The fourth proportional to 28,201.23, 38,917.71 and 16,871.21 is: 23,282.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,201.23 : 38,917.71 = 16,871.21 : x
  2. Step 2: Convert to fraction form
    28,201.23/38,917.71 = 16,871.21/x
  3. Step 3: Cross multiply
    28,201.23x = 38,917.71 × 16,871.21
  4. Step 4: Simplify right side
    28,201.23x = 656,588,858.13
  5. Step 5: Solve for x
    x = 656,588,858.13/28,201.23
  6. Step 6: Final answer
    x = 23,282.28

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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.