Home / 31,811.88-47,717.58-17,579.64

Finding the Fourth Proportional to 31,811.88, 47,717.58 and 17,579.64

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Solution

The fourth proportional to 31,811.88, 47,717.58 and 17,579.64 is: 26,369.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,811.88 : 47,717.58 = 17,579.64 : x
  2. Step 2: Convert to fraction form
    31,811.88/47,717.58 = 17,579.64/x
  3. Step 3: Cross multiply
    31,811.88x = 47,717.58 × 17,579.64
  4. Step 4: Simplify right side
    31,811.88x = 838,857,878.07
  5. Step 5: Solve for x
    x = 838,857,878.07/31,811.88
  6. Step 6: Final answer
    x = 26,369.33

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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.