Home / 20,903.44-31,357.16-6,863.51

Finding the Fourth Proportional to 20,903.44, 31,357.16 and 6,863.51

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Solution

The fourth proportional to 20,903.44, 31,357.16 and 6,863.51 is: 10,295.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,903.44 : 31,357.16 = 6,863.51 : x
  2. Step 2: Convert to fraction form
    20,903.44/31,357.16 = 6,863.51/x
  3. Step 3: Cross multiply
    20,903.44x = 31,357.16 × 6,863.51
  4. Step 4: Simplify right side
    20,903.44x = 215,220,181.23
  5. Step 5: Solve for x
    x = 215,220,181.23/20,903.44
  6. Step 6: Final answer
    x = 10,295.92

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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.