Home / 20,338.16-30,516.21-7,013.18

Finding the Fourth Proportional to 20,338.16, 30,516.21 and 7,013.18

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Solution

The fourth proportional to 20,338.16, 30,516.21 and 7,013.18 is: 10,522.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,338.16 : 30,516.21 = 7,013.18 : x
  2. Step 2: Convert to fraction form
    20,338.16/30,516.21 = 7,013.18/x
  3. Step 3: Cross multiply
    20,338.16x = 30,516.21 × 7,013.18
  4. Step 4: Simplify right side
    20,338.16x = 214,015,749.94
  5. Step 5: Solve for x
    x = 214,015,749.94/20,338.16
  6. Step 6: Final answer
    x = 10,522.87

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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.