Home / 20,238.58-30,366.59-10,867.64

Finding the Fourth Proportional to 20,238.58, 30,366.59 and 10,867.64

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Solution

The fourth proportional to 20,238.58, 30,366.59 and 10,867.64 is: 16,306.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,238.58 : 30,366.59 = 10,867.64 : x
  2. Step 2: Convert to fraction form
    20,238.58/30,366.59 = 10,867.64/x
  3. Step 3: Cross multiply
    20,238.58x = 30,366.59 × 10,867.64
  4. Step 4: Simplify right side
    20,238.58x = 330,013,168.15
  5. Step 5: Solve for x
    x = 330,013,168.15/20,238.58
  6. Step 6: Final answer
    x = 16,306.14

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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.