Home / 28,458.06-42,650.37-13,636.14

Finding the Fourth Proportional to 28,458.06, 42,650.37 and 13,636.14

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Solution

The fourth proportional to 28,458.06, 42,650.37 and 13,636.14 is: 20,436.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,458.06 : 42,650.37 = 13,636.14 : x
  2. Step 2: Convert to fraction form
    28,458.06/42,650.37 = 13,636.14/x
  3. Step 3: Cross multiply
    28,458.06x = 42,650.37 × 13,636.14
  4. Step 4: Simplify right side
    28,458.06x = 581,586,416.37
  5. Step 5: Solve for x
    x = 581,586,416.37/28,458.06
  6. Step 6: Final answer
    x = 20,436.62

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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.