Home / 20,020.44-30,031.74-5,229.40

Finding the Fourth Proportional to 20,020.44, 30,031.74 and 5,229.40

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Solution

The fourth proportional to 20,020.44, 30,031.74 and 5,229.40 is: 7,844.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,020.44 : 30,031.74 = 5,229.40 : x
  2. Step 2: Convert to fraction form
    20,020.44/30,031.74 = 5,229.40/x
  3. Step 3: Cross multiply
    20,020.44x = 30,031.74 × 5,229.40
  4. Step 4: Simplify right side
    20,020.44x = 157,047,981.16
  5. Step 5: Solve for x
    x = 157,047,981.16/20,020.44
  6. Step 6: Final answer
    x = 7,844.38

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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.