Home / 30,712.99-46,059.69-11,988.48

Finding the Fourth Proportional to 30,712.99, 46,059.69 and 11,988.48

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Solution

The fourth proportional to 30,712.99, 46,059.69 and 11,988.48 is: 17,978.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,712.99 : 46,059.69 = 11,988.48 : x
  2. Step 2: Convert to fraction form
    30,712.99/46,059.69 = 11,988.48/x
  3. Step 3: Cross multiply
    30,712.99x = 46,059.69 × 11,988.48
  4. Step 4: Simplify right side
    30,712.99x = 552,185,672.37
  5. Step 5: Solve for x
    x = 552,185,672.37/30,712.99
  6. Step 6: Final answer
    x = 17,978.90

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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.