Home / 20,505.48-30,759.44-6,465.96

Finding the Fourth Proportional to 20,505.48, 30,759.44 and 6,465.96

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Solution

The fourth proportional to 20,505.48, 30,759.44 and 6,465.96 is: 9,699.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,505.48 : 30,759.44 = 6,465.96 : x
  2. Step 2: Convert to fraction form
    20,505.48/30,759.44 = 6,465.96/x
  3. Step 3: Cross multiply
    20,505.48x = 30,759.44 × 6,465.96
  4. Step 4: Simplify right side
    20,505.48x = 198,889,308.66
  5. Step 5: Solve for x
    x = 198,889,308.66/20,505.48
  6. Step 6: Final answer
    x = 9,699.32

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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.