Home / 13,703.85-20,556.36-4,343.67

Finding the Fourth Proportional to 13,703.85, 20,556.36 and 4,343.67

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Solution

The fourth proportional to 13,703.85, 20,556.36 and 4,343.67 is: 6,515.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,703.85 : 20,556.36 = 4,343.67 : x
  2. Step 2: Convert to fraction form
    13,703.85/20,556.36 = 4,343.67/x
  3. Step 3: Cross multiply
    13,703.85x = 20,556.36 × 4,343.67
  4. Step 4: Simplify right side
    13,703.85x = 89,290,044.24
  5. Step 5: Solve for x
    x = 89,290,044.24/13,703.85
  6. Step 6: Final answer
    x = 6,515.69

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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.