Home / 28,818.21-39,756-16,876.26

Finding the Fourth Proportional to 28,818.21, 39,756 and 16,876.26

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Solution

The fourth proportional to 28,818.21, 39,756 and 16,876.26 is: 23,281.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,818.21 : 39,756 = 16,876.26 : x
  2. Step 2: Convert to fraction form
    28,818.21/39,756 = 16,876.26/x
  3. Step 3: Cross multiply
    28,818.21x = 39,756 × 16,876.26
  4. Step 4: Simplify right side
    28,818.21x = 670,932,592.56
  5. Step 5: Solve for x
    x = 670,932,592.56/28,818.21
  6. Step 6: Final answer
    x = 23,281.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.