Home / 21,593.45-29,786.09-15,926.40

Finding the Fourth Proportional to 21,593.45, 29,786.09 and 15,926.40

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Solution

The fourth proportional to 21,593.45, 29,786.09 and 15,926.40 is: 21,968.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,593.45 : 29,786.09 = 15,926.40 : x
  2. Step 2: Convert to fraction form
    21,593.45/29,786.09 = 15,926.40/x
  3. Step 3: Cross multiply
    21,593.45x = 29,786.09 × 15,926.40
  4. Step 4: Simplify right side
    21,593.45x = 474,385,104.14
  5. Step 5: Solve for x
    x = 474,385,104.14/21,593.45
  6. Step 6: Final answer
    x = 21,968.93

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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.