Home / 18,999.24-28,503.30-5,851.32

Finding the Fourth Proportional to 18,999.24, 28,503.30 and 5,851.32

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Solution

The fourth proportional to 18,999.24, 28,503.30 and 5,851.32 is: 8,778.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,999.24 : 28,503.30 = 5,851.32 : x
  2. Step 2: Convert to fraction form
    18,999.24/28,503.30 = 5,851.32/x
  3. Step 3: Cross multiply
    18,999.24x = 28,503.30 × 5,851.32
  4. Step 4: Simplify right side
    18,999.24x = 166,781,929.36
  5. Step 5: Solve for x
    x = 166,781,929.36/18,999.24
  6. Step 6: Final answer
    x = 8,778.35

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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.