Home / 20,246.08-30,359.37-11,478.64

Finding the Fourth Proportional to 20,246.08, 30,359.37 and 11,478.64

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Solution

The fourth proportional to 20,246.08, 30,359.37 and 11,478.64 is: 17,212.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,246.08 : 30,359.37 = 11,478.64 : x
  2. Step 2: Convert to fraction form
    20,246.08/30,359.37 = 11,478.64/x
  3. Step 3: Cross multiply
    20,246.08x = 30,359.37 × 11,478.64
  4. Step 4: Simplify right side
    20,246.08x = 348,484,278.86
  5. Step 5: Solve for x
    x = 348,484,278.86/20,246.08
  6. Step 6: Final answer
    x = 17,212.43

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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.