Home / 20,676.99-31,002.16-8,838.49

Finding the Fourth Proportional to 20,676.99, 31,002.16 and 8,838.49

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Solution

The fourth proportional to 20,676.99, 31,002.16 and 8,838.49 is: 13,252.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,676.99 : 31,002.16 = 8,838.49 : x
  2. Step 2: Convert to fraction form
    20,676.99/31,002.16 = 8,838.49/x
  3. Step 3: Cross multiply
    20,676.99x = 31,002.16 × 8,838.49
  4. Step 4: Simplify right side
    20,676.99x = 274,012,126.13
  5. Step 5: Solve for x
    x = 274,012,126.13/20,676.99
  6. Step 6: Final answer
    x = 13,252.03

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1.5x scale

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.