Home / 26,986.79-40,447.89-19,077.35

Finding the Fourth Proportional to 26,986.79, 40,447.89 and 19,077.35

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Solution

The fourth proportional to 26,986.79, 40,447.89 and 19,077.35 is: 28,593.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,986.79 : 40,447.89 = 19,077.35 : x
  2. Step 2: Convert to fraction form
    26,986.79/40,447.89 = 19,077.35/x
  3. Step 3: Cross multiply
    26,986.79x = 40,447.89 × 19,077.35
  4. Step 4: Simplify right side
    26,986.79x = 771,638,352.05
  5. Step 5: Solve for x
    x = 771,638,352.05/26,986.79
  6. Step 6: Final answer
    x = 28,593.19

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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.