Home / 30,792.51-42,504.21-18,049.79

Finding the Fourth Proportional to 30,792.51, 42,504.21 and 18,049.79

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Solution

The fourth proportional to 30,792.51, 42,504.21 and 18,049.79 is: 24,914.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,792.51 : 42,504.21 = 18,049.79 : x
  2. Step 2: Convert to fraction form
    30,792.51/42,504.21 = 18,049.79/x
  3. Step 3: Cross multiply
    30,792.51x = 42,504.21 × 18,049.79
  4. Step 4: Simplify right side
    30,792.51x = 767,192,170.88
  5. Step 5: Solve for x
    x = 767,192,170.88/30,792.51
  6. Step 6: Final answer
    x = 24,914.90

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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.