Home / 27,965.56-38,592.48-15,390.31

Finding the Fourth Proportional to 27,965.56, 38,592.48 and 15,390.31

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Solution

The fourth proportional to 27,965.56, 38,592.48 and 15,390.31 is: 21,238.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,965.56 : 38,592.48 = 15,390.31 : x
  2. Step 2: Convert to fraction form
    27,965.56/38,592.48 = 15,390.31/x
  3. Step 3: Cross multiply
    27,965.56x = 38,592.48 × 15,390.31
  4. Step 4: Simplify right side
    27,965.56x = 593,950,153.92
  5. Step 5: Solve for x
    x = 593,950,153.92/27,965.56
  6. Step 6: Final answer
    x = 21,238.63

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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.