Home / 20,633.08-30,949.56-7,485.40

Finding the Fourth Proportional to 20,633.08, 30,949.56 and 7,485.40

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Solution

The fourth proportional to 20,633.08, 30,949.56 and 7,485.40 is: 11,228.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,633.08 : 30,949.56 = 7,485.40 : x
  2. Step 2: Convert to fraction form
    20,633.08/30,949.56 = 7,485.40/x
  3. Step 3: Cross multiply
    20,633.08x = 30,949.56 × 7,485.40
  4. Step 4: Simplify right side
    20,633.08x = 231,669,836.42
  5. Step 5: Solve for x
    x = 231,669,836.42/20,633.08
  6. Step 6: Final answer
    x = 11,228.08

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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.