Home / 27,831.57-41,657.04-20,434.38

Finding the Fourth Proportional to 27,831.57, 41,657.04 and 20,434.38

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Solution

The fourth proportional to 27,831.57, 41,657.04 and 20,434.38 is: 30,585.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,831.57 : 41,657.04 = 20,434.38 : x
  2. Step 2: Convert to fraction form
    27,831.57/41,657.04 = 20,434.38/x
  3. Step 3: Cross multiply
    27,831.57x = 41,657.04 × 20,434.38
  4. Step 4: Simplify right side
    27,831.57x = 851,235,785.04
  5. Step 5: Solve for x
    x = 851,235,785.04/27,831.57
  6. Step 6: Final answer
    x = 30,585.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.