Home / 21,464.35-29,620.08-11,904.19

Finding the Fourth Proportional to 21,464.35, 29,620.08 and 11,904.19

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Solution

The fourth proportional to 21,464.35, 29,620.08 and 11,904.19 is: 16,427.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,464.35 : 29,620.08 = 11,904.19 : x
  2. Step 2: Convert to fraction form
    21,464.35/29,620.08 = 11,904.19/x
  3. Step 3: Cross multiply
    21,464.35x = 29,620.08 × 11,904.19
  4. Step 4: Simplify right side
    21,464.35x = 352,603,060.14
  5. Step 5: Solve for x
    x = 352,603,060.14/21,464.35
  6. Step 6: Final answer
    x = 16,427.38

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Double scale
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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.