Home / 21,380.13-32,076.68-10,283.67

Finding the Fourth Proportional to 21,380.13, 32,076.68 and 10,283.67

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Solution

The fourth proportional to 21,380.13, 32,076.68 and 10,283.67 is: 15,428.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,380.13 : 32,076.68 = 10,283.67 : x
  2. Step 2: Convert to fraction form
    21,380.13/32,076.68 = 10,283.67/x
  3. Step 3: Cross multiply
    21,380.13x = 32,076.68 × 10,283.67
  4. Step 4: Simplify right side
    21,380.13x = 329,865,940.40
  5. Step 5: Solve for x
    x = 329,865,940.40/21,380.13
  6. Step 6: Final answer
    x = 15,428.62

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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.