Home / 20,635.28-28,476.19-11,684.98

Finding the Fourth Proportional to 20,635.28, 28,476.19 and 11,684.98

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Solution

The fourth proportional to 20,635.28, 28,476.19 and 11,684.98 is: 16,124.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,635.28 : 28,476.19 = 11,684.98 : x
  2. Step 2: Convert to fraction form
    20,635.28/28,476.19 = 11,684.98/x
  3. Step 3: Cross multiply
    20,635.28x = 28,476.19 × 11,684.98
  4. Step 4: Simplify right side
    20,635.28x = 332,743,710.63
  5. Step 5: Solve for x
    x = 332,743,710.63/20,635.28
  6. Step 6: Final answer
    x = 16,124.99

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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.