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Finding the Fourth Proportional to 30,373.51, 45,563.50 and 12,845.11

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Solution

The fourth proportional to 30,373.51, 45,563.50 and 12,845.11 is: 19,269.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,373.51 : 45,563.50 = 12,845.11 : x
  2. Step 2: Convert to fraction form
    30,373.51/45,563.50 = 12,845.11/x
  3. Step 3: Cross multiply
    30,373.51x = 45,563.50 × 12,845.11
  4. Step 4: Simplify right side
    30,373.51x = 585,268,169.49
  5. Step 5: Solve for x
    x = 585,268,169.49/30,373.51
  6. Step 6: Final answer
    x = 19,269.03

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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.