Home / 28,785.20-39,725.62-16,039.22

Finding the Fourth Proportional to 28,785.20, 39,725.62 and 16,039.22

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Solution

The fourth proportional to 28,785.20, 39,725.62 and 16,039.22 is: 22,135.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,785.20 : 39,725.62 = 16,039.22 : x
  2. Step 2: Convert to fraction form
    28,785.20/39,725.62 = 16,039.22/x
  3. Step 3: Cross multiply
    28,785.20x = 39,725.62 × 16,039.22
  4. Step 4: Simplify right side
    28,785.20x = 637,167,958.82
  5. Step 5: Solve for x
    x = 637,167,958.82/28,785.20
  6. Step 6: Final answer
    x = 22,135.26

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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.