Home / 20,345.08-30,492.98-8,633.70

Finding the Fourth Proportional to 20,345.08, 30,492.98 and 8,633.70

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Solution

The fourth proportional to 20,345.08, 30,492.98 and 8,633.70 is: 12,940.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,345.08 : 30,492.98 = 8,633.70 : x
  2. Step 2: Convert to fraction form
    20,345.08/30,492.98 = 8,633.70/x
  3. Step 3: Cross multiply
    20,345.08x = 30,492.98 × 8,633.70
  4. Step 4: Simplify right side
    20,345.08x = 263,267,241.43
  5. Step 5: Solve for x
    x = 263,267,241.43/20,345.08
  6. Step 6: Final answer
    x = 12,940.09

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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.