Home / 21,185.28-29,248.56-16,460.64

Finding the Fourth Proportional to 21,185.28, 29,248.56 and 16,460.64

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Solution

The fourth proportional to 21,185.28, 29,248.56 and 16,460.64 is: 22,725.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,185.28 : 29,248.56 = 16,460.64 : x
  2. Step 2: Convert to fraction form
    21,185.28/29,248.56 = 16,460.64/x
  3. Step 3: Cross multiply
    21,185.28x = 29,248.56 × 16,460.64
  4. Step 4: Simplify right side
    21,185.28x = 481,450,016.68
  5. Step 5: Solve for x
    x = 481,450,016.68/21,185.28
  6. Step 6: Final answer
    x = 22,725.69

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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.