Home / 30,090.52-45,139.98-12,556.33

Finding the Fourth Proportional to 30,090.52, 45,139.98 and 12,556.33

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Solution

The fourth proportional to 30,090.52, 45,139.98 and 12,556.33 is: 18,836.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,090.52 : 45,139.98 = 12,556.33 : x
  2. Step 2: Convert to fraction form
    30,090.52/45,139.98 = 12,556.33/x
  3. Step 3: Cross multiply
    30,090.52x = 45,139.98 × 12,556.33
  4. Step 4: Simplify right side
    30,090.52x = 566,792,485.07
  5. Step 5: Solve for x
    x = 566,792,485.07/30,090.52
  6. Step 6: Final answer
    x = 18,836.25

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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.