Home / 30,790.26-42,501.11-18,047.54

Finding the Fourth Proportional to 30,790.26, 42,501.11 and 18,047.54

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Solution

The fourth proportional to 30,790.26, 42,501.11 and 18,047.54 is: 24,911.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,790.26 : 42,501.11 = 18,047.54 : x
  2. Step 2: Convert to fraction form
    30,790.26/42,501.11 = 18,047.54/x
  3. Step 3: Cross multiply
    30,790.26x = 42,501.11 × 18,047.54
  4. Step 4: Simplify right side
    30,790.26x = 767,040,498.78
  5. Step 5: Solve for x
    x = 767,040,498.78/30,790.26
  6. Step 6: Final answer
    x = 24,911.79

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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.