Home / 19,103.46-28,645.80-11,221.32

Finding the Fourth Proportional to 19,103.46, 28,645.80 and 11,221.32

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Solution

The fourth proportional to 19,103.46, 28,645.80 and 11,221.32 is: 16,826.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,103.46 : 28,645.80 = 11,221.32 : x
  2. Step 2: Convert to fraction form
    19,103.46/28,645.80 = 11,221.32/x
  3. Step 3: Cross multiply
    19,103.46x = 28,645.80 × 11,221.32
  4. Step 4: Simplify right side
    19,103.46x = 321,443,688.46
  5. Step 5: Solve for x
    x = 321,443,688.46/19,103.46
  6. Step 6: Final answer
    x = 16,826.46

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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.