Home / 28,685.22-39,596.90-18,072.87

Finding the Fourth Proportional to 28,685.22, 39,596.90 and 18,072.87

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Solution

The fourth proportional to 28,685.22, 39,596.90 and 18,072.87 is: 24,947.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,685.22 : 39,596.90 = 18,072.87 : x
  2. Step 2: Convert to fraction form
    28,685.22/39,596.90 = 18,072.87/x
  3. Step 3: Cross multiply
    28,685.22x = 39,596.90 × 18,072.87
  4. Step 4: Simplify right side
    28,685.22x = 715,629,626.10
  5. Step 5: Solve for x
    x = 715,629,626.10/28,685.22
  6. Step 6: Final answer
    x = 24,947.68

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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.