Home / 20,528.01-30,796.79-6,489.45

Finding the Fourth Proportional to 20,528.01, 30,796.79 and 6,489.45

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Solution

The fourth proportional to 20,528.01, 30,796.79 and 6,489.45 is: 9,735.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,528.01 : 30,796.79 = 6,489.45 : x
  2. Step 2: Convert to fraction form
    20,528.01/30,796.79 = 6,489.45/x
  3. Step 3: Cross multiply
    20,528.01x = 30,796.79 × 6,489.45
  4. Step 4: Simplify right side
    20,528.01x = 199,854,196.42
  5. Step 5: Solve for x
    x = 199,854,196.42/20,528.01
  6. Step 6: Final answer
    x = 9,735.68

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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.