Home / 21,465.14-29,620.84-11,904.28

Finding the Fourth Proportional to 21,465.14, 29,620.84 and 11,904.28

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Solution

The fourth proportional to 21,465.14, 29,620.84 and 11,904.28 is: 16,427.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,465.14 : 29,620.84 = 11,904.28 : x
  2. Step 2: Convert to fraction form
    21,465.14/29,620.84 = 11,904.28/x
  3. Step 3: Cross multiply
    21,465.14x = 29,620.84 × 11,904.28
  4. Step 4: Simplify right side
    21,465.14x = 352,614,773.20
  5. Step 5: Solve for x
    x = 352,614,773.20/21,465.14
  6. Step 6: Final answer
    x = 16,427.32

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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.