Home / 20,363.36-28,103.16-11,410.73

Finding the Fourth Proportional to 20,363.36, 28,103.16 and 11,410.73

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Solution

The fourth proportional to 20,363.36, 28,103.16 and 11,410.73 is: 15,747.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,363.36 : 28,103.16 = 11,410.73 : x
  2. Step 2: Convert to fraction form
    20,363.36/28,103.16 = 11,410.73/x
  3. Step 3: Cross multiply
    20,363.36x = 28,103.16 × 11,410.73
  4. Step 4: Simplify right side
    20,363.36x = 320,677,570.91
  5. Step 5: Solve for x
    x = 320,677,570.91/20,363.36
  6. Step 6: Final answer
    x = 15,747.77

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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.