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Finding the Fourth Proportional to 30,295.01, 41,808.08 and 18,960.88

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Solution

The fourth proportional to 30,295.01, 41,808.08 and 18,960.88 is: 26,166.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,295.01 : 41,808.08 = 18,960.88 : x
  2. Step 2: Convert to fraction form
    30,295.01/41,808.08 = 18,960.88/x
  3. Step 3: Cross multiply
    30,295.01x = 41,808.08 × 18,960.88
  4. Step 4: Simplify right side
    30,295.01x = 792,717,987.91
  5. Step 5: Solve for x
    x = 792,717,987.91/30,295.01
  6. Step 6: Final answer
    x = 26,166.62

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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.