Home / 28,739.64-39,660.32-16,164.39

Finding the Fourth Proportional to 28,739.64, 39,660.32 and 16,164.39

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Solution

The fourth proportional to 28,739.64, 39,660.32 and 16,164.39 is: 22,306.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,739.64 : 39,660.32 = 16,164.39 : x
  2. Step 2: Convert to fraction form
    28,739.64/39,660.32 = 16,164.39/x
  3. Step 3: Cross multiply
    28,739.64x = 39,660.32 × 16,164.39
  4. Step 4: Simplify right side
    28,739.64x = 641,084,880.00
  5. Step 5: Solve for x
    x = 641,084,880.00/28,739.64
  6. Step 6: Final answer
    x = 22,306.64

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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.