Home / 28,310.73-42,477.74-12,507.42

Finding the Fourth Proportional to 28,310.73, 42,477.74 and 12,507.42

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Solution

The fourth proportional to 28,310.73, 42,477.74 and 12,507.42 is: 18,766.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,310.73 : 42,477.74 = 12,507.42 : x
  2. Step 2: Convert to fraction form
    28,310.73/42,477.74 = 12,507.42/x
  3. Step 3: Cross multiply
    28,310.73x = 42,477.74 × 12,507.42
  4. Step 4: Simplify right side
    28,310.73x = 531,286,872.29
  5. Step 5: Solve for x
    x = 531,286,872.29/28,310.73
  6. Step 6: Final answer
    x = 18,766.27

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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.