Home / 20,245.08-30,357.87-11,477.64

Finding the Fourth Proportional to 20,245.08, 30,357.87 and 11,477.64

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Solution

The fourth proportional to 20,245.08, 30,357.87 and 11,477.64 is: 17,210.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,245.08 : 30,357.87 = 11,477.64 : x
  2. Step 2: Convert to fraction form
    20,245.08/30,357.87 = 11,477.64/x
  3. Step 3: Cross multiply
    20,245.08x = 30,357.87 × 11,477.64
  4. Step 4: Simplify right side
    20,245.08x = 348,436,703.03
  5. Step 5: Solve for x
    x = 348,436,703.03/20,245.08
  6. Step 6: Final answer
    x = 17,210.93

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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.