Home / 30,216.40-45,324.60-18,536.20

Finding the Fourth Proportional to 30,216.40, 45,324.60 and 18,536.20

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Solution

The fourth proportional to 30,216.40, 45,324.60 and 18,536.20 is: 27,804.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,216.40 : 45,324.60 = 18,536.20 : x
  2. Step 2: Convert to fraction form
    30,216.40/45,324.60 = 18,536.20/x
  3. Step 3: Cross multiply
    30,216.40x = 45,324.60 × 18,536.20
  4. Step 4: Simplify right side
    30,216.40x = 840,145,850.52
  5. Step 5: Solve for x
    x = 840,145,850.52/30,216.40
  6. Step 6: Final answer
    x = 27,804.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.