Home / 20,625.49-28,463.60-11,672.99

Finding the Fourth Proportional to 20,625.49, 28,463.60 and 11,672.99

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Solution

The fourth proportional to 20,625.49, 28,463.60 and 11,672.99 is: 16,108.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,625.49 : 28,463.60 = 11,672.99 : x
  2. Step 2: Convert to fraction form
    20,625.49/28,463.60 = 11,672.99/x
  3. Step 3: Cross multiply
    20,625.49x = 28,463.60 × 11,672.99
  4. Step 4: Simplify right side
    20,625.49x = 332,255,318.16
  5. Step 5: Solve for x
    x = 332,255,318.16/20,625.49
  6. Step 6: Final answer
    x = 16,108.97

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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.