Home / 20,196.84-27,812.83-15,713.04

Finding the Fourth Proportional to 20,196.84, 27,812.83 and 15,713.04

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Solution

The fourth proportional to 20,196.84, 27,812.83 and 15,713.04 is: 21,638.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,196.84 : 27,812.83 = 15,713.04 : x
  2. Step 2: Convert to fraction form
    20,196.84/27,812.83 = 15,713.04/x
  3. Step 3: Cross multiply
    20,196.84x = 27,812.83 × 15,713.04
  4. Step 4: Simplify right side
    20,196.84x = 437,024,110.30
  5. Step 5: Solve for x
    x = 437,024,110.30/20,196.84
  6. Step 6: Final answer
    x = 21,638.24

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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.