Home / 30,072.40-45,042.96-18,350.08

Finding the Fourth Proportional to 30,072.40, 45,042.96 and 18,350.08

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Solution

The fourth proportional to 30,072.40, 45,042.96 and 18,350.08 is: 27,485.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,072.40 : 45,042.96 = 18,350.08 : x
  2. Step 2: Convert to fraction form
    30,072.40/45,042.96 = 18,350.08/x
  3. Step 3: Cross multiply
    30,072.40x = 45,042.96 × 18,350.08
  4. Step 4: Simplify right side
    30,072.40x = 826,541,919.44
  5. Step 5: Solve for x
    x = 826,541,919.44/30,072.40
  6. Step 6: Final answer
    x = 27,485.07

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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.