Home / 28,861.30-43,300.32-14,078.80

Finding the Fourth Proportional to 28,861.30, 43,300.32 and 14,078.80

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Solution

The fourth proportional to 28,861.30, 43,300.32 and 14,078.80 is: 21,122.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,861.30 : 43,300.32 = 14,078.80 : x
  2. Step 2: Convert to fraction form
    28,861.30/43,300.32 = 14,078.80/x
  3. Step 3: Cross multiply
    28,861.30x = 43,300.32 × 14,078.80
  4. Step 4: Simplify right side
    28,861.30x = 609,616,545.22
  5. Step 5: Solve for x
    x = 609,616,545.22/28,861.30
  6. Step 6: Final answer
    x = 21,122.28

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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.