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Finding the Fourth Proportional to 30,481.80, 45,832.05 and 25,670.40

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Solution

The fourth proportional to 30,481.80, 45,832.05 and 25,670.40 is: 38,597.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,481.80 : 45,832.05 = 25,670.40 : x
  2. Step 2: Convert to fraction form
    30,481.80/45,832.05 = 25,670.40/x
  3. Step 3: Cross multiply
    30,481.80x = 45,832.05 × 25,670.40
  4. Step 4: Simplify right side
    30,481.80x = 1,176,527,056.32
  5. Step 5: Solve for x
    x = 1,176,527,056.32/30,481.80
  6. Step 6: Final answer
    x = 38,597.69

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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.