Home / 31,708.70-47,558.94-11,984.69

Finding the Fourth Proportional to 31,708.70, 47,558.94 and 11,984.69

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Solution

The fourth proportional to 31,708.70, 47,558.94 and 11,984.69 is: 17,975.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,708.70 : 47,558.94 = 11,984.69 : x
  2. Step 2: Convert to fraction form
    31,708.70/47,558.94 = 11,984.69/x
  3. Step 3: Cross multiply
    31,708.70x = 47,558.94 × 11,984.69
  4. Step 4: Simplify right side
    31,708.70x = 569,979,152.63
  5. Step 5: Solve for x
    x = 569,979,152.63/31,708.70
  6. Step 6: Final answer
    x = 17,975.48

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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.