Home / 28,781.69-43,219.43-17,758.44

Finding the Fourth Proportional to 28,781.69, 43,219.43 and 17,758.44

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Solution

The fourth proportional to 28,781.69, 43,219.43 and 17,758.44 is: 26,666.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,781.69 : 43,219.43 = 17,758.44 : x
  2. Step 2: Convert to fraction form
    28,781.69/43,219.43 = 17,758.44/x
  3. Step 3: Cross multiply
    28,781.69x = 43,219.43 × 17,758.44
  4. Step 4: Simplify right side
    28,781.69x = 767,509,565.70
  5. Step 5: Solve for x
    x = 767,509,565.70/28,781.69
  6. Step 6: Final answer
    x = 26,666.60

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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.