Home / 28,629.36-39,509.52-16,690.68

Finding the Fourth Proportional to 28,629.36, 39,509.52 and 16,690.68

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Solution

The fourth proportional to 28,629.36, 39,509.52 and 16,690.68 is: 23,033.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,629.36 : 39,509.52 = 16,690.68 : x
  2. Step 2: Convert to fraction form
    28,629.36/39,509.52 = 16,690.68/x
  3. Step 3: Cross multiply
    28,629.36x = 39,509.52 × 16,690.68
  4. Step 4: Simplify right side
    28,629.36x = 659,440,755.27
  5. Step 5: Solve for x
    x = 659,440,755.27/28,629.36
  6. Step 6: Final answer
    x = 23,033.72

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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.