Home / 31,708.36-47,565.68-11,723.09

Finding the Fourth Proportional to 31,708.36, 47,565.68 and 11,723.09

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Solution

The fourth proportional to 31,708.36, 47,565.68 and 11,723.09 is: 17,585.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,708.36 : 47,565.68 = 11,723.09 : x
  2. Step 2: Convert to fraction form
    31,708.36/47,565.68 = 11,723.09/x
  3. Step 3: Cross multiply
    31,708.36x = 47,565.68 × 11,723.09
  4. Step 4: Simplify right side
    31,708.36x = 557,616,688.94
  5. Step 5: Solve for x
    x = 557,616,688.94/31,708.36
  6. Step 6: Final answer
    x = 17,585.80

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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.