Home / 19,317.89-28,973.42-8,785.44

Finding the Fourth Proportional to 19,317.89, 28,973.42 and 8,785.44

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Solution

The fourth proportional to 19,317.89, 28,973.42 and 8,785.44 is: 13,176.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,317.89 : 28,973.42 = 8,785.44 : x
  2. Step 2: Convert to fraction form
    19,317.89/28,973.42 = 8,785.44/x
  3. Step 3: Cross multiply
    19,317.89x = 28,973.42 × 8,785.44
  4. Step 4: Simplify right side
    19,317.89x = 254,544,199.08
  5. Step 5: Solve for x
    x = 254,544,199.08/19,317.89
  6. Step 6: Final answer
    x = 13,176.61

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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.