Home / 20,679.93-28,537.15-11,604.45

Finding the Fourth Proportional to 20,679.93, 28,537.15 and 11,604.45

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Solution

The fourth proportional to 20,679.93, 28,537.15 and 11,604.45 is: 16,013.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,679.93 : 28,537.15 = 11,604.45 : x
  2. Step 2: Convert to fraction form
    20,679.93/28,537.15 = 11,604.45/x
  3. Step 3: Cross multiply
    20,679.93x = 28,537.15 × 11,604.45
  4. Step 4: Simplify right side
    20,679.93x = 331,157,869.56
  5. Step 5: Solve for x
    x = 331,157,869.56/20,679.93
  6. Step 6: Final answer
    x = 16,013.49

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1.5x scale

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.