Home / 28,858.05-43,284.89-10,138.25

Finding the Fourth Proportional to 28,858.05, 43,284.89 and 10,138.25

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Solution

The fourth proportional to 28,858.05, 43,284.89 and 10,138.25 is: 15,206.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,858.05 : 43,284.89 = 10,138.25 : x
  2. Step 2: Convert to fraction form
    28,858.05/43,284.89 = 10,138.25/x
  3. Step 3: Cross multiply
    28,858.05x = 43,284.89 × 10,138.25
  4. Step 4: Simplify right side
    28,858.05x = 438,833,169.60
  5. Step 5: Solve for x
    x = 438,833,169.60/28,858.05
  6. Step 6: Final answer
    x = 15,206.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.