Home / 31,705.43-47,561.79-18,557.92

Finding the Fourth Proportional to 31,705.43, 47,561.79 and 18,557.92

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Solution

The fourth proportional to 31,705.43, 47,561.79 and 18,557.92 is: 27,839.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,705.43 : 47,561.79 = 18,557.92 : x
  2. Step 2: Convert to fraction form
    31,705.43/47,561.79 = 18,557.92/x
  3. Step 3: Cross multiply
    31,705.43x = 47,561.79 × 18,557.92
  4. Step 4: Simplify right side
    31,705.43x = 882,647,656.07
  5. Step 5: Solve for x
    x = 882,647,656.07/31,705.43
  6. Step 6: Final answer
    x = 27,839.01

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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.