Home / 20,266.84-27,958.54-12,709.38

Finding the Fourth Proportional to 20,266.84, 27,958.54 and 12,709.38

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Solution

The fourth proportional to 20,266.84, 27,958.54 and 12,709.38 is: 17,532.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,266.84 : 27,958.54 = 12,709.38 : x
  2. Step 2: Convert to fraction form
    20,266.84/27,958.54 = 12,709.38/x
  3. Step 3: Cross multiply
    20,266.84x = 27,958.54 × 12,709.38
  4. Step 4: Simplify right side
    20,266.84x = 355,335,709.11
  5. Step 5: Solve for x
    x = 355,335,709.11/20,266.84
  6. Step 6: Final answer
    x = 17,532.86

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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.