Home / 27,648.64-38,142.99-18,692.89

Finding the Fourth Proportional to 27,648.64, 38,142.99 and 18,692.89

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Solution

The fourth proportional to 27,648.64, 38,142.99 and 18,692.89 is: 25,787.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,648.64 : 38,142.99 = 18,692.89 : x
  2. Step 2: Convert to fraction form
    27,648.64/38,142.99 = 18,692.89/x
  3. Step 3: Cross multiply
    27,648.64x = 38,142.99 × 18,692.89
  4. Step 4: Simplify right side
    27,648.64x = 713,002,716.34
  5. Step 5: Solve for x
    x = 713,002,716.34/27,648.64
  6. Step 6: Final answer
    x = 25,787.99

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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.