Home / 30,151.84-41,604.55-16,720.96

Finding the Fourth Proportional to 30,151.84, 41,604.55 and 16,720.96

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Solution

The fourth proportional to 30,151.84, 41,604.55 and 16,720.96 is: 23,072.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,151.84 : 41,604.55 = 16,720.96 : x
  2. Step 2: Convert to fraction form
    30,151.84/41,604.55 = 16,720.96/x
  3. Step 3: Cross multiply
    30,151.84x = 41,604.55 × 16,720.96
  4. Step 4: Simplify right side
    30,151.84x = 695,668,016.37
  5. Step 5: Solve for x
    x = 695,668,016.37/30,151.84
  6. Step 6: Final answer
    x = 23,072.16

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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.