Home / 21,265.53-31,897.54-11,424.03

Finding the Fourth Proportional to 21,265.53, 31,897.54 and 11,424.03

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Solution

The fourth proportional to 21,265.53, 31,897.54 and 11,424.03 is: 17,135.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,265.53 : 31,897.54 = 11,424.03 : x
  2. Step 2: Convert to fraction form
    21,265.53/31,897.54 = 11,424.03/x
  3. Step 3: Cross multiply
    21,265.53x = 31,897.54 × 11,424.03
  4. Step 4: Simplify right side
    21,265.53x = 364,398,453.89
  5. Step 5: Solve for x
    x = 364,398,453.89/21,265.53
  6. Step 6: Final answer
    x = 17,135.64

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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.