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Finding the Fourth Proportional to 20,533.59, 30,800.39 and 11,762.37

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Solution

The fourth proportional to 20,533.59, 30,800.39 and 11,762.37 is: 17,643.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,533.59 : 30,800.39 = 11,762.37 : x
  2. Step 2: Convert to fraction form
    20,533.59/30,800.39 = 11,762.37/x
  3. Step 3: Cross multiply
    20,533.59x = 30,800.39 × 11,762.37
  4. Step 4: Simplify right side
    20,533.59x = 362,285,524.51
  5. Step 5: Solve for x
    x = 362,285,524.51/20,533.59
  6. Step 6: Final answer
    x = 17,643.56

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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.