Home / 21,241.86-31,827.33-14,991.54

Finding the Fourth Proportional to 21,241.86, 31,827.33 and 14,991.54

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Solution

The fourth proportional to 21,241.86, 31,827.33 and 14,991.54 is: 22,462.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,241.86 : 31,827.33 = 14,991.54 : x
  2. Step 2: Convert to fraction form
    21,241.86/31,827.33 = 14,991.54/x
  3. Step 3: Cross multiply
    21,241.86x = 31,827.33 × 14,991.54
  4. Step 4: Simplify right side
    21,241.86x = 477,140,690.79
  5. Step 5: Solve for x
    x = 477,140,690.79/21,241.86
  6. Step 6: Final answer
    x = 22,462.28

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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.