Home / 30,090.76-41,512.17-18,147.46

Finding the Fourth Proportional to 30,090.76, 41,512.17 and 18,147.46

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Solution

The fourth proportional to 30,090.76, 41,512.17 and 18,147.46 is: 25,035.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,090.76 : 41,512.17 = 18,147.46 : x
  2. Step 2: Convert to fraction form
    30,090.76/41,512.17 = 18,147.46/x
  3. Step 3: Cross multiply
    30,090.76x = 41,512.17 × 18,147.46
  4. Step 4: Simplify right side
    30,090.76x = 753,340,444.59
  5. Step 5: Solve for x
    x = 753,340,444.59/30,090.76
  6. Step 6: Final answer
    x = 25,035.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.