Home / 20,467.46-30,669.89-13,779.18

Finding the Fourth Proportional to 20,467.46, 30,669.89 and 13,779.18

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Solution

The fourth proportional to 20,467.46, 30,669.89 and 13,779.18 is: 20,647.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,467.46 : 30,669.89 = 13,779.18 : x
  2. Step 2: Convert to fraction form
    20,467.46/30,669.89 = 13,779.18/x
  3. Step 3: Cross multiply
    20,467.46x = 30,669.89 × 13,779.18
  4. Step 4: Simplify right side
    20,467.46x = 422,605,865.99
  5. Step 5: Solve for x
    x = 422,605,865.99/20,467.46
  6. Step 6: Final answer
    x = 20,647.70

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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.