Home / 20,845.32-31,258.53-8,993.49

Finding the Fourth Proportional to 20,845.32, 31,258.53 and 8,993.49

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Solution

The fourth proportional to 20,845.32, 31,258.53 and 8,993.49 is: 13,486.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,845.32 : 31,258.53 = 8,993.49 : x
  2. Step 2: Convert to fraction form
    20,845.32/31,258.53 = 8,993.49/x
  3. Step 3: Cross multiply
    20,845.32x = 31,258.53 × 8,993.49
  4. Step 4: Simplify right side
    20,845.32x = 281,123,276.97
  5. Step 5: Solve for x
    x = 281,123,276.97/20,845.32
  6. Step 6: Final answer
    x = 13,486.16

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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.