Home / 20,214.58-30,330.69-7,076.38

Finding the Fourth Proportional to 20,214.58, 30,330.69 and 7,076.38

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Solution

The fourth proportional to 20,214.58, 30,330.69 and 7,076.38 is: 10,617.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,214.58 : 30,330.69 = 7,076.38 : x
  2. Step 2: Convert to fraction form
    20,214.58/30,330.69 = 7,076.38/x
  3. Step 3: Cross multiply
    20,214.58x = 30,330.69 × 7,076.38
  4. Step 4: Simplify right side
    20,214.58x = 214,631,488.10
  5. Step 5: Solve for x
    x = 214,631,488.10/20,214.58
  6. Step 6: Final answer
    x = 10,617.66

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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.