Home / 28,021.64-38,672.18-16,087.28

Finding the Fourth Proportional to 28,021.64, 38,672.18 and 16,087.28

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Solution

The fourth proportional to 28,021.64, 38,672.18 and 16,087.28 is: 22,201.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,021.64 : 38,672.18 = 16,087.28 : x
  2. Step 2: Convert to fraction form
    28,021.64/38,672.18 = 16,087.28/x
  3. Step 3: Cross multiply
    28,021.64x = 38,672.18 × 16,087.28
  4. Step 4: Simplify right side
    28,021.64x = 622,130,107.43
  5. Step 5: Solve for x
    x = 622,130,107.43/28,021.64
  6. Step 6: Final answer
    x = 22,201.77

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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.