Home / 28,992.78-43,505.55-12,351.06

Finding the Fourth Proportional to 28,992.78, 43,505.55 and 12,351.06

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Solution

The fourth proportional to 28,992.78, 43,505.55 and 12,351.06 is: 18,533.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,992.78 : 43,505.55 = 12,351.06 : x
  2. Step 2: Convert to fraction form
    28,992.78/43,505.55 = 12,351.06/x
  3. Step 3: Cross multiply
    28,992.78x = 43,505.55 × 12,351.06
  4. Step 4: Simplify right side
    28,992.78x = 537,339,658.38
  5. Step 5: Solve for x
    x = 537,339,658.38/28,992.78
  6. Step 6: Final answer
    x = 18,533.57

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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.