Home / 20,601.38-30,902.08-5,018.88

Finding the Fourth Proportional to 20,601.38, 30,902.08 and 5,018.88

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Solution

The fourth proportional to 20,601.38, 30,902.08 and 5,018.88 is: 7,528.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,601.38 : 30,902.08 = 5,018.88 : x
  2. Step 2: Convert to fraction form
    20,601.38/30,902.08 = 5,018.88/x
  3. Step 3: Cross multiply
    20,601.38x = 30,902.08 × 5,018.88
  4. Step 4: Simplify right side
    20,601.38x = 155,093,831.27
  5. Step 5: Solve for x
    x = 155,093,831.27/20,601.38
  6. Step 6: Final answer
    x = 7,528.32

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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.