Home / 30,120.13-41,566.86-18,181.14

Finding the Fourth Proportional to 30,120.13, 41,566.86 and 18,181.14

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Solution

The fourth proportional to 30,120.13, 41,566.86 and 18,181.14 is: 25,090.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,120.13 : 41,566.86 = 18,181.14 : x
  2. Step 2: Convert to fraction form
    30,120.13/41,566.86 = 18,181.14/x
  3. Step 3: Cross multiply
    30,120.13x = 41,566.86 × 18,181.14
  4. Step 4: Simplify right side
    30,120.13x = 755,732,602.28
  5. Step 5: Solve for x
    x = 755,732,602.28/30,120.13
  6. Step 6: Final answer
    x = 25,090.62

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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.