Home / 28,183.63-38,893.85-15,436.59

Finding the Fourth Proportional to 28,183.63, 38,893.85 and 15,436.59

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Solution

The fourth proportional to 28,183.63, 38,893.85 and 15,436.59 is: 21,302.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,183.63 : 38,893.85 = 15,436.59 : x
  2. Step 2: Convert to fraction form
    28,183.63/38,893.85 = 15,436.59/x
  3. Step 3: Cross multiply
    28,183.63x = 38,893.85 × 15,436.59
  4. Step 4: Simplify right side
    28,183.63x = 600,388,415.97
  5. Step 5: Solve for x
    x = 600,388,415.97/28,183.63
  6. Step 6: Final answer
    x = 21,302.74

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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.