Home / 20,464.40-30,698.04-5,675.60

Finding the Fourth Proportional to 20,464.40, 30,698.04 and 5,675.60

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Solution

The fourth proportional to 20,464.40, 30,698.04 and 5,675.60 is: 8,513.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,464.40 : 30,698.04 = 5,675.60 : x
  2. Step 2: Convert to fraction form
    20,464.40/30,698.04 = 5,675.60/x
  3. Step 3: Cross multiply
    20,464.40x = 30,698.04 × 5,675.60
  4. Step 4: Simplify right side
    20,464.40x = 174,229,795.82
  5. Step 5: Solve for x
    x = 174,229,795.82/20,464.40
  6. Step 6: Final answer
    x = 8,513.80

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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.