Home / 20,277.84-30,421.24-6,239.12

Finding the Fourth Proportional to 20,277.84, 30,421.24 and 6,239.12

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Solution

The fourth proportional to 20,277.84, 30,421.24 and 6,239.12 is: 9,360.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,277.84 : 30,421.24 = 6,239.12 : x
  2. Step 2: Convert to fraction form
    20,277.84/30,421.24 = 6,239.12/x
  3. Step 3: Cross multiply
    20,277.84x = 30,421.24 × 6,239.12
  4. Step 4: Simplify right side
    20,277.84x = 189,801,766.91
  5. Step 5: Solve for x
    x = 189,801,766.91/20,277.84
  6. Step 6: Final answer
    x = 9,360.06

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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.