Home / 20,550.60-30,816.72-6,506.64

Finding the Fourth Proportional to 20,550.60, 30,816.72 and 6,506.64

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Solution

The fourth proportional to 20,550.60, 30,816.72 and 6,506.64 is: 9,757.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,550.60 : 30,816.72 = 6,506.64 : x
  2. Step 2: Convert to fraction form
    20,550.60/30,816.72 = 6,506.64/x
  3. Step 3: Cross multiply
    20,550.60x = 30,816.72 × 6,506.64
  4. Step 4: Simplify right side
    20,550.60x = 200,513,303.02
  5. Step 5: Solve for x
    x = 200,513,303.02/20,550.60
  6. Step 6: Final answer
    x = 9,757.05

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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.