Home / 21,260.03-31,890.56-10,167.89

Finding the Fourth Proportional to 21,260.03, 31,890.56 and 10,167.89

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Solution

The fourth proportional to 21,260.03, 31,890.56 and 10,167.89 is: 15,252.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,260.03 : 31,890.56 = 10,167.89 : x
  2. Step 2: Convert to fraction form
    21,260.03/31,890.56 = 10,167.89/x
  3. Step 3: Cross multiply
    21,260.03x = 31,890.56 × 10,167.89
  4. Step 4: Simplify right side
    21,260.03x = 324,259,706.12
  5. Step 5: Solve for x
    x = 324,259,706.12/21,260.03
  6. Step 6: Final answer
    x = 15,252.08

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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.