Home / 28,625.85-42,901.83-12,819.33

Finding the Fourth Proportional to 28,625.85, 42,901.83 and 12,819.33

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Solution

The fourth proportional to 28,625.85, 42,901.83 and 12,819.33 is: 19,212.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,625.85 : 42,901.83 = 12,819.33 : x
  2. Step 2: Convert to fraction form
    28,625.85/42,901.83 = 12,819.33/x
  3. Step 3: Cross multiply
    28,625.85x = 42,901.83 × 12,819.33
  4. Step 4: Simplify right side
    28,625.85x = 549,972,716.37
  5. Step 5: Solve for x
    x = 549,972,716.37/28,625.85
  6. Step 6: Final answer
    x = 19,212.45

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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.