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Finding the Fourth Proportional to 30,450.71, 45,699.15 and 12,932.84

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Solution

The fourth proportional to 30,450.71, 45,699.15 and 12,932.84 is: 19,409.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,450.71 : 45,699.15 = 12,932.84 : x
  2. Step 2: Convert to fraction form
    30,450.71/45,699.15 = 12,932.84/x
  3. Step 3: Cross multiply
    30,450.71x = 45,699.15 × 12,932.84
  4. Step 4: Simplify right side
    30,450.71x = 591,019,795.09
  5. Step 5: Solve for x
    x = 591,019,795.09/30,450.71
  6. Step 6: Final answer
    x = 19,409.06

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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.