Home / 28,725.80-39,645.16-16,150.55

Finding the Fourth Proportional to 28,725.80, 39,645.16 and 16,150.55

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Solution

The fourth proportional to 28,725.80, 39,645.16 and 16,150.55 is: 22,289.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,725.80 : 39,645.16 = 16,150.55 : x
  2. Step 2: Convert to fraction form
    28,725.80/39,645.16 = 16,150.55/x
  3. Step 3: Cross multiply
    28,725.80x = 39,645.16 × 16,150.55
  4. Step 4: Simplify right side
    28,725.80x = 640,290,900.24
  5. Step 5: Solve for x
    x = 640,290,900.24/28,725.80
  6. Step 6: Final answer
    x = 22,289.75

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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.