Home / 21,201.37-31,806.67-6,409.91

Finding the Fourth Proportional to 21,201.37, 31,806.67 and 6,409.91

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Solution

The fourth proportional to 21,201.37, 31,806.67 and 6,409.91 is: 9,616.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,201.37 : 31,806.67 = 6,409.91 : x
  2. Step 2: Convert to fraction form
    21,201.37/31,806.67 = 6,409.91/x
  3. Step 3: Cross multiply
    21,201.37x = 31,806.67 × 6,409.91
  4. Step 4: Simplify right side
    21,201.37x = 203,877,733.07
  5. Step 5: Solve for x
    x = 203,877,733.07/21,201.37
  6. Step 6: Final answer
    x = 9,616.26

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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.