Home / 35,930.16-49,583.60-20,831.56

Finding the Fourth Proportional to 35,930.16, 49,583.60 and 20,831.56

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Solution

The fourth proportional to 35,930.16, 49,583.60 and 20,831.56 is: 28,747.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,930.16 : 49,583.60 = 20,831.56 : x
  2. Step 2: Convert to fraction form
    35,930.16/49,583.60 = 20,831.56/x
  3. Step 3: Cross multiply
    35,930.16x = 49,583.60 × 20,831.56
  4. Step 4: Simplify right side
    35,930.16x = 1,032,903,738.42
  5. Step 5: Solve for x
    x = 1,032,903,738.42/35,930.16
  6. Step 6: Final answer
    x = 28,747.54

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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.