Home / 20,186.03-30,258.69-12,694.95

Finding the Fourth Proportional to 20,186.03, 30,258.69 and 12,694.95

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Solution

The fourth proportional to 20,186.03, 30,258.69 and 12,694.95 is: 19,029.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,186.03 : 30,258.69 = 12,694.95 : x
  2. Step 2: Convert to fraction form
    20,186.03/30,258.69 = 12,694.95/x
  3. Step 3: Cross multiply
    20,186.03x = 30,258.69 × 12,694.95
  4. Step 4: Simplify right side
    20,186.03x = 384,132,437.06
  5. Step 5: Solve for x
    x = 384,132,437.06/20,186.03
  6. Step 6: Final answer
    x = 19,029.62

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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.