Home / 21,106.69-29,127.24-11,676.67

Finding the Fourth Proportional to 21,106.69, 29,127.24 and 11,676.67

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Solution

The fourth proportional to 21,106.69, 29,127.24 and 11,676.67 is: 16,113.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,106.69 : 29,127.24 = 11,676.67 : x
  2. Step 2: Convert to fraction form
    21,106.69/29,127.24 = 11,676.67/x
  3. Step 3: Cross multiply
    21,106.69x = 29,127.24 × 11,676.67
  4. Step 4: Simplify right side
    21,106.69x = 340,109,096.67
  5. Step 5: Solve for x
    x = 340,109,096.67/21,106.69
  6. Step 6: Final answer
    x = 16,113.81

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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.