Home / 20,021.35-27,628.60-10,946.55

Finding the Fourth Proportional to 20,021.35, 27,628.60 and 10,946.55

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Solution

The fourth proportional to 20,021.35, 27,628.60 and 10,946.55 is: 15,105.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,021.35 : 27,628.60 = 10,946.55 : x
  2. Step 2: Convert to fraction form
    20,021.35/27,628.60 = 10,946.55/x
  3. Step 3: Cross multiply
    20,021.35x = 27,628.60 × 10,946.55
  4. Step 4: Simplify right side
    20,021.35x = 302,437,658.45
  5. Step 5: Solve for x
    x = 302,437,658.45/20,021.35
  6. Step 6: Final answer
    x = 15,105.76

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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.