Home / 21,222.68-31,823.09-9,525.88

Finding the Fourth Proportional to 21,222.68, 31,823.09 and 9,525.88

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Solution

The fourth proportional to 21,222.68, 31,823.09 and 9,525.88 is: 14,283.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,222.68 : 31,823.09 = 9,525.88 : x
  2. Step 2: Convert to fraction form
    21,222.68/31,823.09 = 9,525.88/x
  3. Step 3: Cross multiply
    21,222.68x = 31,823.09 × 9,525.88
  4. Step 4: Simplify right side
    21,222.68x = 303,142,729.82
  5. Step 5: Solve for x
    x = 303,142,729.82/21,222.68
  6. Step 6: Final answer
    x = 14,283.90

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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.