Home / 28,926.96-39,907.43-18,851.73

Finding the Fourth Proportional to 28,926.96, 39,907.43 and 18,851.73

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Solution

The fourth proportional to 28,926.96, 39,907.43 and 18,851.73 is: 26,007.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,926.96 : 39,907.43 = 18,851.73 : x
  2. Step 2: Convert to fraction form
    28,926.96/39,907.43 = 18,851.73/x
  3. Step 3: Cross multiply
    28,926.96x = 39,907.43 × 18,851.73
  4. Step 4: Simplify right side
    28,926.96x = 752,324,001.10
  5. Step 5: Solve for x
    x = 752,324,001.10/28,926.96
  6. Step 6: Final answer
    x = 26,007.71

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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.