Home / 20,427.14-28,185.08-11,925.41

Finding the Fourth Proportional to 20,427.14, 28,185.08 and 11,925.41

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Solution

The fourth proportional to 20,427.14, 28,185.08 and 11,925.41 is: 16,454.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,427.14 : 28,185.08 = 11,925.41 : x
  2. Step 2: Convert to fraction form
    20,427.14/28,185.08 = 11,925.41/x
  3. Step 3: Cross multiply
    20,427.14x = 28,185.08 × 11,925.41
  4. Step 4: Simplify right side
    20,427.14x = 336,118,634.88
  5. Step 5: Solve for x
    x = 336,118,634.88/20,427.14
  6. Step 6: Final answer
    x = 16,454.51

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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.