Home / 30,074.09-41,516.55-20,019.15

Finding the Fourth Proportional to 30,074.09, 41,516.55 and 20,019.15

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Solution

The fourth proportional to 30,074.09, 41,516.55 and 20,019.15 is: 27,635.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,074.09 : 41,516.55 = 20,019.15 : x
  2. Step 2: Convert to fraction form
    30,074.09/41,516.55 = 20,019.15/x
  3. Step 3: Cross multiply
    30,074.09x = 41,516.55 × 20,019.15
  4. Step 4: Simplify right side
    30,074.09x = 831,126,041.93
  5. Step 5: Solve for x
    x = 831,126,041.93/30,074.09
  6. Step 6: Final answer
    x = 27,635.95

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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.