Home / 31,941.51-47,918.03-13,211.37

Finding the Fourth Proportional to 31,941.51, 47,918.03 and 13,211.37

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Solution

The fourth proportional to 31,941.51, 47,918.03 and 13,211.37 is: 19,819.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,941.51 : 47,918.03 = 13,211.37 : x
  2. Step 2: Convert to fraction form
    31,941.51/47,918.03 = 13,211.37/x
  3. Step 3: Cross multiply
    31,941.51x = 47,918.03 × 13,211.37
  4. Step 4: Simplify right side
    31,941.51x = 633,062,824.00
  5. Step 5: Solve for x
    x = 633,062,824.00/31,941.51
  6. Step 6: Final answer
    x = 19,819.44

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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.