Home / 30,080.10-45,121.62-7,893.54

Finding the Fourth Proportional to 30,080.10, 45,121.62 and 7,893.54

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Solution

The fourth proportional to 30,080.10, 45,121.62 and 7,893.54 is: 11,840.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,080.10 : 45,121.62 = 7,893.54 : x
  2. Step 2: Convert to fraction form
    30,080.10/45,121.62 = 7,893.54/x
  3. Step 3: Cross multiply
    30,080.10x = 45,121.62 × 7,893.54
  4. Step 4: Simplify right side
    30,080.10x = 356,169,312.33
  5. Step 5: Solve for x
    x = 356,169,312.33/30,080.10
  6. Step 6: Final answer
    x = 11,840.70

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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.