Home / 21,207.84-29,268.36-15,893.28

Finding the Fourth Proportional to 21,207.84, 29,268.36 and 15,893.28

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Solution

The fourth proportional to 21,207.84, 29,268.36 and 15,893.28 is: 21,933.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,207.84 : 29,268.36 = 15,893.28 : x
  2. Step 2: Convert to fraction form
    21,207.84/29,268.36 = 15,893.28/x
  3. Step 3: Cross multiply
    21,207.84x = 29,268.36 × 15,893.28
  4. Step 4: Simplify right side
    21,207.84x = 465,170,240.62
  5. Step 5: Solve for x
    x = 465,170,240.62/21,207.84
  6. Step 6: Final answer
    x = 21,933.88

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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.