Home / 28,362.58-39,144.03-16,267.78

Finding the Fourth Proportional to 28,362.58, 39,144.03 and 16,267.78

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Solution

The fourth proportional to 28,362.58, 39,144.03 and 16,267.78 is: 22,451.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,362.58 : 39,144.03 = 16,267.78 : x
  2. Step 2: Convert to fraction form
    28,362.58/39,144.03 = 16,267.78/x
  3. Step 3: Cross multiply
    28,362.58x = 39,144.03 × 16,267.78
  4. Step 4: Simplify right side
    28,362.58x = 636,786,468.35
  5. Step 5: Solve for x
    x = 636,786,468.35/28,362.58
  6. Step 6: Final answer
    x = 22,451.64

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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.