Home / 28,819.44-39,804-19,242.72

Finding the Fourth Proportional to 28,819.44, 39,804 and 19,242.72

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Solution

The fourth proportional to 28,819.44, 39,804 and 19,242.72 is: 26,577.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,819.44 : 39,804 = 19,242.72 : x
  2. Step 2: Convert to fraction form
    28,819.44/39,804 = 19,242.72/x
  3. Step 3: Cross multiply
    28,819.44x = 39,804 × 19,242.72
  4. Step 4: Simplify right side
    28,819.44x = 765,937,226.88
  5. Step 5: Solve for x
    x = 765,937,226.88/28,819.44
  6. Step 6: Final answer
    x = 26,577.10

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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.