Home / 20,762.14-28,651.74-11,330.68

Finding the Fourth Proportional to 20,762.14, 28,651.74 and 11,330.68

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Solution

The fourth proportional to 20,762.14, 28,651.74 and 11,330.68 is: 15,636.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,762.14 : 28,651.74 = 11,330.68 : x
  2. Step 2: Convert to fraction form
    20,762.14/28,651.74 = 11,330.68/x
  3. Step 3: Cross multiply
    20,762.14x = 28,651.74 × 11,330.68
  4. Step 4: Simplify right side
    20,762.14x = 324,643,697.38
  5. Step 5: Solve for x
    x = 324,643,697.38/20,762.14
  6. Step 6: Final answer
    x = 15,636.33

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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.