Home / 28,926.40-39,906.66-18,851.16

Finding the Fourth Proportional to 28,926.40, 39,906.66 and 18,851.16

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Solution

The fourth proportional to 28,926.40, 39,906.66 and 18,851.16 is: 26,006.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,926.40 : 39,906.66 = 18,851.16 : x
  2. Step 2: Convert to fraction form
    28,926.40/39,906.66 = 18,851.16/x
  3. Step 3: Cross multiply
    28,926.40x = 39,906.66 × 18,851.16
  4. Step 4: Simplify right side
    28,926.40x = 752,286,832.73
  5. Step 5: Solve for x
    x = 752,286,832.73/28,926.40
  6. Step 6: Final answer
    x = 26,006.93

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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.