Home / 21,333.76-29,440.50-11,902.34

Finding the Fourth Proportional to 21,333.76, 29,440.50 and 11,902.34

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Solution

The fourth proportional to 21,333.76, 29,440.50 and 11,902.34 is: 16,425.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,333.76 : 29,440.50 = 11,902.34 : x
  2. Step 2: Convert to fraction form
    21,333.76/29,440.50 = 11,902.34/x
  3. Step 3: Cross multiply
    21,333.76x = 29,440.50 × 11,902.34
  4. Step 4: Simplify right side
    21,333.76x = 350,410,840.77
  5. Step 5: Solve for x
    x = 350,410,840.77/21,333.76
  6. Step 6: Final answer
    x = 16,425.18

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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.