Home / 20,676.61-28,527.29-11,723.41

Finding the Fourth Proportional to 20,676.61, 28,527.29 and 11,723.41

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Solution

The fourth proportional to 20,676.61, 28,527.29 and 11,723.41 is: 16,174.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,676.61 : 28,527.29 = 11,723.41 : x
  2. Step 2: Convert to fraction form
    20,676.61/28,527.29 = 11,723.41/x
  3. Step 3: Cross multiply
    20,676.61x = 28,527.29 × 11,723.41
  4. Step 4: Simplify right side
    20,676.61x = 334,437,058.24
  5. Step 5: Solve for x
    x = 334,437,058.24/20,676.61
  6. Step 6: Final answer
    x = 16,174.66

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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.