Home / 28,763.08-43,115.40-21,823

Finding the Fourth Proportional to 28,763.08, 43,115.40 and 21,823

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Solution

The fourth proportional to 28,763.08, 43,115.40 and 21,823 is: 32,712.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,763.08 : 43,115.40 = 21,823 : x
  2. Step 2: Convert to fraction form
    28,763.08/43,115.40 = 21,823/x
  3. Step 3: Cross multiply
    28,763.08x = 43,115.40 × 21,823
  4. Step 4: Simplify right side
    28,763.08x = 940,907,374.20
  5. Step 5: Solve for x
    x = 940,907,374.20/28,763.08
  6. Step 6: Final answer
    x = 32,712.33

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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.