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Finding the Fourth Proportional to 35,533.60, 53,234.80 and 20,749.60

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Solution

The fourth proportional to 35,533.60, 53,234.80 and 20,749.60 is: 31,086.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,533.60 : 53,234.80 = 20,749.60 : x
  2. Step 2: Convert to fraction form
    35,533.60/53,234.80 = 20,749.60/x
  3. Step 3: Cross multiply
    35,533.60x = 53,234.80 × 20,749.60
  4. Step 4: Simplify right side
    35,533.60x = 1,104,600,806.08
  5. Step 5: Solve for x
    x = 1,104,600,806.08/35,533.60
  6. Step 6: Final answer
    x = 31,086.09

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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.