Home / 27,577.86-41,370.90-12,788.28

Finding the Fourth Proportional to 27,577.86, 41,370.90 and 12,788.28

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Solution

The fourth proportional to 27,577.86, 41,370.90 and 12,788.28 is: 19,184.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,577.86 : 41,370.90 = 12,788.28 : x
  2. Step 2: Convert to fraction form
    27,577.86/41,370.90 = 12,788.28/x
  3. Step 3: Cross multiply
    27,577.86x = 41,370.90 × 12,788.28
  4. Step 4: Simplify right side
    27,577.86x = 529,062,449.96
  5. Step 5: Solve for x
    x = 529,062,449.96/27,577.86
  6. Step 6: Final answer
    x = 19,184.32

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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.