Home / 18,830.89-28,246.49-4,790.93

Finding the Fourth Proportional to 18,830.89, 28,246.49 and 4,790.93

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Solution

The fourth proportional to 18,830.89, 28,246.49 and 4,790.93 is: 7,186.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,830.89 : 28,246.49 = 4,790.93 : x
  2. Step 2: Convert to fraction form
    18,830.89/28,246.49 = 4,790.93/x
  3. Step 3: Cross multiply
    18,830.89x = 28,246.49 × 4,790.93
  4. Step 4: Simplify right side
    18,830.89x = 135,326,836.06
  5. Step 5: Solve for x
    x = 135,326,836.06/18,830.89
  6. Step 6: Final answer
    x = 7,186.43

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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.