Home / 17,929.14-26,893.71-4,780.86

Finding the Fourth Proportional to 17,929.14, 26,893.71 and 4,780.86

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Solution

The fourth proportional to 17,929.14, 26,893.71 and 4,780.86 is: 7,171.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,929.14 : 26,893.71 = 4,780.86 : x
  2. Step 2: Convert to fraction form
    17,929.14/26,893.71 = 4,780.86/x
  3. Step 3: Cross multiply
    17,929.14x = 26,893.71 × 4,780.86
  4. Step 4: Simplify right side
    17,929.14x = 128,575,062.39
  5. Step 5: Solve for x
    x = 128,575,062.39/17,929.14
  6. Step 6: Final answer
    x = 7,171.29

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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.