Home / 30,161.12-41,595.07-18,831.65

Finding the Fourth Proportional to 30,161.12, 41,595.07 and 18,831.65

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Solution

The fourth proportional to 30,161.12, 41,595.07 and 18,831.65 is: 25,970.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,161.12 : 41,595.07 = 18,831.65 : x
  2. Step 2: Convert to fraction form
    30,161.12/41,595.07 = 18,831.65/x
  3. Step 3: Cross multiply
    30,161.12x = 41,595.07 × 18,831.65
  4. Step 4: Simplify right side
    30,161.12x = 783,303,799.97
  5. Step 5: Solve for x
    x = 783,303,799.97/30,161.12
  6. Step 6: Final answer
    x = 25,970.65

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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.