Home / 21,282.32-29,369.40-11,850.32

Finding the Fourth Proportional to 21,282.32, 29,369.40 and 11,850.32

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Solution

The fourth proportional to 21,282.32, 29,369.40 and 11,850.32 is: 16,353.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,282.32 : 29,369.40 = 11,850.32 : x
  2. Step 2: Convert to fraction form
    21,282.32/29,369.40 = 11,850.32/x
  3. Step 3: Cross multiply
    21,282.32x = 29,369.40 × 11,850.32
  4. Step 4: Simplify right side
    21,282.32x = 348,036,788.21
  5. Step 5: Solve for x
    x = 348,036,788.21/21,282.32
  6. Step 6: Final answer
    x = 16,353.33

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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.