Home / 30,065.07-45,090.31-12,525.33

Finding the Fourth Proportional to 30,065.07, 45,090.31 and 12,525.33

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Solution

The fourth proportional to 30,065.07, 45,090.31 and 12,525.33 is: 18,784.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,065.07 : 45,090.31 = 12,525.33 : x
  2. Step 2: Convert to fraction form
    30,065.07/45,090.31 = 12,525.33/x
  3. Step 3: Cross multiply
    30,065.07x = 45,090.31 × 12,525.33
  4. Step 4: Simplify right side
    30,065.07x = 564,770,812.15
  5. Step 5: Solve for x
    x = 564,770,812.15/30,065.07
  6. Step 6: Final answer
    x = 18,784.95

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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.