Home / 20,004.09-30,012.63-6,856.59

Finding the Fourth Proportional to 20,004.09, 30,012.63 and 6,856.59

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Solution

The fourth proportional to 20,004.09, 30,012.63 and 6,856.59 is: 10,287.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,004.09 : 30,012.63 = 6,856.59 : x
  2. Step 2: Convert to fraction form
    20,004.09/30,012.63 = 6,856.59/x
  3. Step 3: Cross multiply
    20,004.09x = 30,012.63 × 6,856.59
  4. Step 4: Simplify right side
    20,004.09x = 205,784,298.73
  5. Step 5: Solve for x
    x = 205,784,298.73/20,004.09
  6. Step 6: Final answer
    x = 10,287.11

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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.