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Finding the Fourth Proportional to 30,647.04, 45,965.04 and 8,454.92

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Solution

The fourth proportional to 30,647.04, 45,965.04 and 8,454.92 is: 12,680.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,647.04 : 45,965.04 = 8,454.92 : x
  2. Step 2: Convert to fraction form
    30,647.04/45,965.04 = 8,454.92/x
  3. Step 3: Cross multiply
    30,647.04x = 45,965.04 × 8,454.92
  4. Step 4: Simplify right side
    30,647.04x = 388,630,506.17
  5. Step 5: Solve for x
    x = 388,630,506.17/30,647.04
  6. Step 6: Final answer
    x = 12,680.85

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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.