Home / 20,863.68-31,260.33-10,319.64

Finding the Fourth Proportional to 20,863.68, 31,260.33 and 10,319.64

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Solution

The fourth proportional to 20,863.68, 31,260.33 and 10,319.64 is: 15,462.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,863.68 : 31,260.33 = 10,319.64 : x
  2. Step 2: Convert to fraction form
    20,863.68/31,260.33 = 10,319.64/x
  3. Step 3: Cross multiply
    20,863.68x = 31,260.33 × 10,319.64
  4. Step 4: Simplify right side
    20,863.68x = 322,595,351.88
  5. Step 5: Solve for x
    x = 322,595,351.88/20,863.68
  6. Step 6: Final answer
    x = 15,462.05

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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.