Home / 27,581.28-38,058.84-15,644.04

Finding the Fourth Proportional to 27,581.28, 38,058.84 and 15,644.04

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Solution

The fourth proportional to 27,581.28, 38,058.84 and 15,644.04 is: 21,586.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,581.28 : 38,058.84 = 15,644.04 : x
  2. Step 2: Convert to fraction form
    27,581.28/38,058.84 = 15,644.04/x
  3. Step 3: Cross multiply
    27,581.28x = 38,058.84 × 15,644.04
  4. Step 4: Simplify right side
    27,581.28x = 595,394,015.31
  5. Step 5: Solve for x
    x = 595,394,015.31/27,581.28
  6. Step 6: Final answer
    x = 21,586.89

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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.