Home / 20,882.04-28,817.01-11,450.67

Finding the Fourth Proportional to 20,882.04, 28,817.01 and 11,450.67

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Solution

The fourth proportional to 20,882.04, 28,817.01 and 11,450.67 is: 15,801.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,882.04 : 28,817.01 = 11,450.67 : x
  2. Step 2: Convert to fraction form
    20,882.04/28,817.01 = 11,450.67/x
  3. Step 3: Cross multiply
    20,882.04x = 28,817.01 × 11,450.67
  4. Step 4: Simplify right side
    20,882.04x = 329,974,071.90
  5. Step 5: Solve for x
    x = 329,974,071.90/20,882.04
  6. Step 6: Final answer
    x = 15,801.81

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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.