Home / 20,841.54-31,247.73-10,447.62

Finding the Fourth Proportional to 20,841.54, 31,247.73 and 10,447.62

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Solution

The fourth proportional to 20,841.54, 31,247.73 and 10,447.62 is: 15,664.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,841.54 : 31,247.73 = 10,447.62 : x
  2. Step 2: Convert to fraction form
    20,841.54/31,247.73 = 10,447.62/x
  3. Step 3: Cross multiply
    20,841.54x = 31,247.73 × 10,447.62
  4. Step 4: Simplify right side
    20,841.54x = 326,464,408.90
  5. Step 5: Solve for x
    x = 326,464,408.90/20,841.54
  6. Step 6: Final answer
    x = 15,664.12

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1.5x scale

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.