Home / 30,209.21-41,686.42-16,779.32

Finding the Fourth Proportional to 30,209.21, 41,686.42 and 16,779.32

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Solution

The fourth proportional to 30,209.21, 41,686.42 and 16,779.32 is: 23,154.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,209.21 : 41,686.42 = 16,779.32 : x
  2. Step 2: Convert to fraction form
    30,209.21/41,686.42 = 16,779.32/x
  3. Step 3: Cross multiply
    30,209.21x = 41,686.42 × 16,779.32
  4. Step 4: Simplify right side
    30,209.21x = 699,469,780.83
  5. Step 5: Solve for x
    x = 699,469,780.83/30,209.21
  6. Step 6: Final answer
    x = 23,154.19

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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.