Home / 20,563.36-30,845.12-4,980.96

Finding the Fourth Proportional to 20,563.36, 30,845.12 and 4,980.96

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Solution

The fourth proportional to 20,563.36, 30,845.12 and 4,980.96 is: 7,471.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,563.36 : 30,845.12 = 4,980.96 : x
  2. Step 2: Convert to fraction form
    20,563.36/30,845.12 = 4,980.96/x
  3. Step 3: Cross multiply
    20,563.36x = 30,845.12 × 4,980.96
  4. Step 4: Simplify right side
    20,563.36x = 153,638,308.92
  5. Step 5: Solve for x
    x = 153,638,308.92/20,563.36
  6. Step 6: Final answer
    x = 7,471.46

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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.