Home / 30,209.32-41,687.10-16,779.80

Finding the Fourth Proportional to 30,209.32, 41,687.10 and 16,779.80

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Solution

The fourth proportional to 30,209.32, 41,687.10 and 16,779.80 is: 23,155.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,209.32 : 41,687.10 = 16,779.80 : x
  2. Step 2: Convert to fraction form
    30,209.32/41,687.10 = 16,779.80/x
  3. Step 3: Cross multiply
    30,209.32x = 41,687.10 × 16,779.80
  4. Step 4: Simplify right side
    30,209.32x = 699,501,200.58
  5. Step 5: Solve for x
    x = 699,501,200.58/30,209.32
  6. Step 6: Final answer
    x = 23,155.15

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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.