Home / 20,335.36-30,453.36-12,533.44

Finding the Fourth Proportional to 20,335.36, 30,453.36 and 12,533.44

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Solution

The fourth proportional to 20,335.36, 30,453.36 and 12,533.44 is: 18,769.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,335.36 : 30,453.36 = 12,533.44 : x
  2. Step 2: Convert to fraction form
    20,335.36/30,453.36 = 12,533.44/x
  3. Step 3: Cross multiply
    20,335.36x = 30,453.36 × 12,533.44
  4. Step 4: Simplify right side
    20,335.36x = 381,685,360.36
  5. Step 5: Solve for x
    x = 381,685,360.36/20,335.36
  6. Step 6: Final answer
    x = 18,769.54

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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.