Home / 20,004.36-30,006.53-6,856.84

Finding the Fourth Proportional to 20,004.36, 30,006.53 and 6,856.84

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Solution

The fourth proportional to 20,004.36, 30,006.53 and 6,856.84 is: 10,285.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,004.36 : 30,006.53 = 6,856.84 : x
  2. Step 2: Convert to fraction form
    20,004.36/30,006.53 = 6,856.84/x
  3. Step 3: Cross multiply
    20,004.36x = 30,006.53 × 6,856.84
  4. Step 4: Simplify right side
    20,004.36x = 205,749,975.17
  5. Step 5: Solve for x
    x = 205,749,975.17/20,004.36
  6. Step 6: Final answer
    x = 10,285.26

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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.