Home / 27,965.73-38,592.72-15,390.48

Finding the Fourth Proportional to 27,965.73, 38,592.72 and 15,390.48

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Solution

The fourth proportional to 27,965.73, 38,592.72 and 15,390.48 is: 21,238.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,965.73 : 38,592.72 = 15,390.48 : x
  2. Step 2: Convert to fraction form
    27,965.73/38,592.72 = 15,390.48/x
  3. Step 3: Cross multiply
    27,965.73x = 38,592.72 × 15,390.48
  4. Step 4: Simplify right side
    27,965.73x = 593,960,572.31
  5. Step 5: Solve for x
    x = 593,960,572.31/27,965.73
  6. Step 6: Final answer
    x = 21,238.87

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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.