Home / 30,119.07-41,565.39-18,180.07

Finding the Fourth Proportional to 30,119.07, 41,565.39 and 18,180.07

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Solution

The fourth proportional to 30,119.07, 41,565.39 and 18,180.07 is: 25,089.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,119.07 : 41,565.39 = 18,180.07 : x
  2. Step 2: Convert to fraction form
    30,119.07/41,565.39 = 18,180.07/x
  3. Step 3: Cross multiply
    30,119.07x = 41,565.39 × 18,180.07
  4. Step 4: Simplify right side
    30,119.07x = 755,661,761.49
  5. Step 5: Solve for x
    x = 755,661,761.49/30,119.07
  6. Step 6: Final answer
    x = 25,089.15

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Double scale
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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.