Home / 18,753.93-27,971.93-15,811.81

Finding the Fourth Proportional to 18,753.93, 27,971.93 and 15,811.81

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Solution

The fourth proportional to 18,753.93, 27,971.93 and 15,811.81 is: 23,583.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,753.93 : 27,971.93 = 15,811.81 : x
  2. Step 2: Convert to fraction form
    18,753.93/27,971.93 = 15,811.81/x
  3. Step 3: Cross multiply
    18,753.93x = 27,971.93 × 15,811.81
  4. Step 4: Simplify right side
    18,753.93x = 442,286,812.09
  5. Step 5: Solve for x
    x = 442,286,812.09/18,753.93
  6. Step 6: Final answer
    x = 23,583.69

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.