Home / 20,669.96-30,980.33-14,396.00

Finding the Fourth Proportional to 20,669.96, 30,980.33 and 14,396.00

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Solution

The fourth proportional to 20,669.96, 30,980.33 and 14,396.00 is: 21,576.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,669.96 : 30,980.33 = 14,396.00 : x
  2. Step 2: Convert to fraction form
    20,669.96/30,980.33 = 14,396.00/x
  3. Step 3: Cross multiply
    20,669.96x = 30,980.33 × 14,396.00
  4. Step 4: Simplify right side
    20,669.96x = 445,992,603.80
  5. Step 5: Solve for x
    x = 445,992,603.80/20,669.96
  6. Step 6: Final answer
    x = 21,576.85

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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.