Home / 21,350.47-29,464.11-11,919.03

Finding the Fourth Proportional to 21,350.47, 29,464.11 and 11,919.03

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Solution

The fourth proportional to 21,350.47, 29,464.11 and 11,919.03 is: 16,448.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,350.47 : 29,464.11 = 11,919.03 : x
  2. Step 2: Convert to fraction form
    21,350.47/29,464.11 = 11,919.03/x
  3. Step 3: Cross multiply
    21,350.47x = 29,464.11 × 11,919.03
  4. Step 4: Simplify right side
    21,350.47x = 351,183,551.42
  5. Step 5: Solve for x
    x = 351,183,551.42/21,350.47
  6. Step 6: Final answer
    x = 16,448.52

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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.