Home / 21,334.31-29,441.36-11,902.67

Finding the Fourth Proportional to 21,334.31, 29,441.36 and 11,902.67

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Solution

The fourth proportional to 21,334.31, 29,441.36 and 11,902.67 is: 16,425.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,334.31 : 29,441.36 = 11,902.67 : x
  2. Step 2: Convert to fraction form
    21,334.31/29,441.36 = 11,902.67/x
  3. Step 3: Cross multiply
    21,334.31x = 29,441.36 × 11,902.67
  4. Step 4: Simplify right side
    21,334.31x = 350,430,732.92
  5. Step 5: Solve for x
    x = 350,430,732.92/21,334.31
  6. Step 6: Final answer
    x = 16,425.69

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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.