Home / 18,582.80-27,836.40-11,541.20

Finding the Fourth Proportional to 18,582.80, 27,836.40 and 11,541.20

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Solution

The fourth proportional to 18,582.80, 27,836.40 and 11,541.20 is: 17,288.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,582.80 : 27,836.40 = 11,541.20 : x
  2. Step 2: Convert to fraction form
    18,582.80/27,836.40 = 11,541.20/x
  3. Step 3: Cross multiply
    18,582.80x = 27,836.40 × 11,541.20
  4. Step 4: Simplify right side
    18,582.80x = 321,265,459.68
  5. Step 5: Solve for x
    x = 321,265,459.68/18,582.80
  6. Step 6: Final answer
    x = 17,288.32

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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.