Home / 21,464.46-29,620.40-11,904.38

Finding the Fourth Proportional to 21,464.46, 29,620.40 and 11,904.38

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Solution

The fourth proportional to 21,464.46, 29,620.40 and 11,904.38 is: 16,427.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,464.46 : 29,620.40 = 11,904.38 : x
  2. Step 2: Convert to fraction form
    21,464.46/29,620.40 = 11,904.38/x
  3. Step 3: Cross multiply
    21,464.46x = 29,620.40 × 11,904.38
  4. Step 4: Simplify right side
    21,464.46x = 352,612,497.35
  5. Step 5: Solve for x
    x = 352,612,497.35/21,464.46
  6. Step 6: Final answer
    x = 16,427.74

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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.