Home / 28,918-43,394.82-13,336.84

Finding the Fourth Proportional to 28,918, 43,394.82 and 13,336.84

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Solution

The fourth proportional to 28,918, 43,394.82 and 13,336.84 is: 20,013.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,918 : 43,394.82 = 13,336.84 : x
  2. Step 2: Convert to fraction form
    28,918/43,394.82 = 13,336.84/x
  3. Step 3: Cross multiply
    28,918x = 43,394.82 × 13,336.84
  4. Step 4: Simplify right side
    28,918x = 578,749,771.17
  5. Step 5: Solve for x
    x = 578,749,771.17/28,918
  6. Step 6: Final answer
    x = 20,013.48

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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.