Home / 20,154.92-27,816.05-11,203.27

Finding the Fourth Proportional to 20,154.92, 27,816.05 and 11,203.27

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Solution

The fourth proportional to 20,154.92, 27,816.05 and 11,203.27 is: 15,461.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,154.92 : 27,816.05 = 11,203.27 : x
  2. Step 2: Convert to fraction form
    20,154.92/27,816.05 = 11,203.27/x
  3. Step 3: Cross multiply
    20,154.92x = 27,816.05 × 11,203.27
  4. Step 4: Simplify right side
    20,154.92x = 311,630,676.95
  5. Step 5: Solve for x
    x = 311,630,676.95/20,154.92
  6. Step 6: Final answer
    x = 15,461.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.