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Finding the Fourth Proportional to 30,968.02, 46,453.79 and 8,779.65

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Solution

The fourth proportional to 30,968.02, 46,453.79 and 8,779.65 is: 13,169.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,968.02 : 46,453.79 = 8,779.65 : x
  2. Step 2: Convert to fraction form
    30,968.02/46,453.79 = 8,779.65/x
  3. Step 3: Cross multiply
    30,968.02x = 46,453.79 × 8,779.65
  4. Step 4: Simplify right side
    30,968.02x = 407,847,741.21
  5. Step 5: Solve for x
    x = 407,847,741.21/30,968.02
  6. Step 6: Final answer
    x = 13,169.97

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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.