Home / 30,930.83-42,682.19-18,184.53

Finding the Fourth Proportional to 30,930.83, 42,682.19 and 18,184.53

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Solution

The fourth proportional to 30,930.83, 42,682.19 and 18,184.53 is: 25,093.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,930.83 : 42,682.19 = 18,184.53 : x
  2. Step 2: Convert to fraction form
    30,930.83/42,682.19 = 18,184.53/x
  3. Step 3: Cross multiply
    30,930.83x = 42,682.19 × 18,184.53
  4. Step 4: Simplify right side
    30,930.83x = 776,155,564.52
  5. Step 5: Solve for x
    x = 776,155,564.52/30,930.83
  6. Step 6: Final answer
    x = 25,093.27

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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.