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Finding the Fourth Proportional to 30,909.98, 46,368.02 and 8,723.55

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Solution

The fourth proportional to 30,909.98, 46,368.02 and 8,723.55 is: 13,086.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,909.98 : 46,368.02 = 8,723.55 : x
  2. Step 2: Convert to fraction form
    30,909.98/46,368.02 = 8,723.55/x
  3. Step 3: Cross multiply
    30,909.98x = 46,368.02 × 8,723.55
  4. Step 4: Simplify right side
    30,909.98x = 404,493,651.20
  5. Step 5: Solve for x
    x = 404,493,651.20/30,909.98
  6. Step 6: Final answer
    x = 13,086.18

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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.