Home / 18,216.64-25,253.60-17,218.82

Finding the Fourth Proportional to 18,216.64, 25,253.60 and 17,218.82

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Solution

The fourth proportional to 18,216.64, 25,253.60 and 17,218.82 is: 23,870.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,216.64 : 25,253.60 = 17,218.82 : x
  2. Step 2: Convert to fraction form
    18,216.64/25,253.60 = 17,218.82/x
  3. Step 3: Cross multiply
    18,216.64x = 25,253.60 × 17,218.82
  4. Step 4: Simplify right side
    18,216.64x = 434,837,192.75
  5. Step 5: Solve for x
    x = 434,837,192.75/18,216.64
  6. Step 6: Final answer
    x = 23,870.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.