Home / 30,055.32-41,470.20-18,119.43

Finding the Fourth Proportional to 30,055.32, 41,470.20 and 18,119.43

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Solution

The fourth proportional to 30,055.32, 41,470.20 and 18,119.43 is: 25,001.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,055.32 : 41,470.20 = 18,119.43 : x
  2. Step 2: Convert to fraction form
    30,055.32/41,470.20 = 18,119.43/x
  3. Step 3: Cross multiply
    30,055.32x = 41,470.20 × 18,119.43
  4. Step 4: Simplify right side
    30,055.32x = 751,416,385.99
  5. Step 5: Solve for x
    x = 751,416,385.99/30,055.32
  6. Step 6: Final answer
    x = 25,001.11

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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.