Home / 31,921.93-47,881.09-14,147.47

Finding the Fourth Proportional to 31,921.93, 47,881.09 and 14,147.47

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Solution

The fourth proportional to 31,921.93, 47,881.09 and 14,147.47 is: 21,220.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,921.93 : 47,881.09 = 14,147.47 : x
  2. Step 2: Convert to fraction form
    31,921.93/47,881.09 = 14,147.47/x
  3. Step 3: Cross multiply
    31,921.93x = 47,881.09 × 14,147.47
  4. Step 4: Simplify right side
    31,921.93x = 677,396,284.34
  5. Step 5: Solve for x
    x = 677,396,284.34/31,921.93
  6. Step 6: Final answer
    x = 21,220.41

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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.