Home / 20,185.83-27,861.23-12,632.18

Finding the Fourth Proportional to 20,185.83, 27,861.23 and 12,632.18

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Solution

The fourth proportional to 20,185.83, 27,861.23 and 12,632.18 is: 17,435.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,185.83 : 27,861.23 = 12,632.18 : x
  2. Step 2: Convert to fraction form
    20,185.83/27,861.23 = 12,632.18/x
  3. Step 3: Cross multiply
    20,185.83x = 27,861.23 × 12,632.18
  4. Step 4: Simplify right side
    20,185.83x = 351,947,964.66
  5. Step 5: Solve for x
    x = 351,947,964.66/20,185.83
  6. Step 6: Final answer
    x = 17,435.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.