Home / 27,488.40-41,128.60-18,272.40

Finding the Fourth Proportional to 27,488.40, 41,128.60 and 18,272.40

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Solution

The fourth proportional to 27,488.40, 41,128.60 and 18,272.40 is: 27,339.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,488.40 : 41,128.60 = 18,272.40 : x
  2. Step 2: Convert to fraction form
    27,488.40/41,128.60 = 18,272.40/x
  3. Step 3: Cross multiply
    27,488.40x = 41,128.60 × 18,272.40
  4. Step 4: Simplify right side
    27,488.40x = 751,518,230.64
  5. Step 5: Solve for x
    x = 751,518,230.64/27,488.40
  6. Step 6: Final answer
    x = 27,339.47

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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.