Home / 28,724.36-39,638.58-16,150.28

Finding the Fourth Proportional to 28,724.36, 39,638.58 and 16,150.28

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Solution

The fourth proportional to 28,724.36, 39,638.58 and 16,150.28 is: 22,286.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,724.36 : 39,638.58 = 16,150.28 : x
  2. Step 2: Convert to fraction form
    28,724.36/39,638.58 = 16,150.28/x
  3. Step 3: Cross multiply
    28,724.36x = 39,638.58 × 16,150.28
  4. Step 4: Simplify right side
    28,724.36x = 640,174,165.80
  5. Step 5: Solve for x
    x = 640,174,165.80/28,724.36
  6. Step 6: Final answer
    x = 22,286.80

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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.