Home / 30,212.20-41,699.51-16,788.07

Finding the Fourth Proportional to 30,212.20, 41,699.51 and 16,788.07

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Solution

The fourth proportional to 30,212.20, 41,699.51 and 16,788.07 is: 23,171.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,212.20 : 41,699.51 = 16,788.07 : x
  2. Step 2: Convert to fraction form
    30,212.20/41,699.51 = 16,788.07/x
  3. Step 3: Cross multiply
    30,212.20x = 41,699.51 × 16,788.07
  4. Step 4: Simplify right side
    30,212.20x = 700,054,292.85
  5. Step 5: Solve for x
    x = 700,054,292.85/30,212.20
  6. Step 6: Final answer
    x = 23,171.25

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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.