Home / 20,466.86-28,244.31-12,083.90

Finding the Fourth Proportional to 20,466.86, 28,244.31 and 12,083.90

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Solution

The fourth proportional to 20,466.86, 28,244.31 and 12,083.90 is: 16,675.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,466.86 : 28,244.31 = 12,083.90 : x
  2. Step 2: Convert to fraction form
    20,466.86/28,244.31 = 12,083.90/x
  3. Step 3: Cross multiply
    20,466.86x = 28,244.31 × 12,083.90
  4. Step 4: Simplify right side
    20,466.86x = 341,301,417.61
  5. Step 5: Solve for x
    x = 341,301,417.61/20,466.86
  6. Step 6: Final answer
    x = 16,675.81

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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.