Home / 21,334.03-29,440.98-11,902.60

Finding the Fourth Proportional to 21,334.03, 29,440.98 and 11,902.60

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Solution

The fourth proportional to 21,334.03, 29,440.98 and 11,902.60 is: 16,425.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,334.03 : 29,440.98 = 11,902.60 : x
  2. Step 2: Convert to fraction form
    21,334.03/29,440.98 = 11,902.60/x
  3. Step 3: Cross multiply
    21,334.03x = 29,440.98 × 11,902.60
  4. Step 4: Simplify right side
    21,334.03x = 350,424,208.55
  5. Step 5: Solve for x
    x = 350,424,208.55/21,334.03
  6. Step 6: Final answer
    x = 16,425.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.