Home / 21,016.64-29,002.41-11,585.24

Finding the Fourth Proportional to 21,016.64, 29,002.41 and 11,585.24

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Solution

The fourth proportional to 21,016.64, 29,002.41 and 11,585.24 is: 15,987.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,016.64 : 29,002.41 = 11,585.24 : x
  2. Step 2: Convert to fraction form
    21,016.64/29,002.41 = 11,585.24/x
  3. Step 3: Cross multiply
    21,016.64x = 29,002.41 × 11,585.24
  4. Step 4: Simplify right side
    21,016.64x = 335,999,880.43
  5. Step 5: Solve for x
    x = 335,999,880.43/21,016.64
  6. Step 6: Final answer
    x = 15,987.33

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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.