Home / 20,277.40-30,419.00-6,238.60

Finding the Fourth Proportional to 20,277.40, 30,419.00 and 6,238.60

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Solution

The fourth proportional to 20,277.40, 30,419.00 and 6,238.60 is: 9,358.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,277.40 : 30,419.00 = 6,238.60 : x
  2. Step 2: Convert to fraction form
    20,277.40/30,419.00 = 6,238.60/x
  3. Step 3: Cross multiply
    20,277.40x = 30,419.00 × 6,238.60
  4. Step 4: Simplify right side
    20,277.40x = 189,771,957.80
  5. Step 5: Solve for x
    x = 189,771,957.80/20,277.40
  6. Step 6: Final answer
    x = 9,358.79

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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.