Home / 27,317.58-40,926.69-18,979.98

Finding the Fourth Proportional to 27,317.58, 40,926.69 and 18,979.98

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Solution

The fourth proportional to 27,317.58, 40,926.69 and 18,979.98 is: 28,435.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,317.58 : 40,926.69 = 18,979.98 : x
  2. Step 2: Convert to fraction form
    27,317.58/40,926.69 = 18,979.98/x
  3. Step 3: Cross multiply
    27,317.58x = 40,926.69 × 18,979.98
  4. Step 4: Simplify right side
    27,317.58x = 776,787,757.67
  5. Step 5: Solve for x
    x = 776,787,757.67/27,317.58
  6. Step 6: Final answer
    x = 28,435.45

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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.