Home / 20,867.43-31,265.94-10,323.39

Finding the Fourth Proportional to 20,867.43, 31,265.94 and 10,323.39

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Solution

The fourth proportional to 20,867.43, 31,265.94 and 10,323.39 is: 15,467.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,867.43 : 31,265.94 = 10,323.39 : x
  2. Step 2: Convert to fraction form
    20,867.43/31,265.94 = 10,323.39/x
  3. Step 3: Cross multiply
    20,867.43x = 31,265.94 × 10,323.39
  4. Step 4: Simplify right side
    20,867.43x = 322,770,492.34
  5. Step 5: Solve for x
    x = 322,770,492.34/20,867.43
  6. Step 6: Final answer
    x = 15,467.67

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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.