Home / 27,960.76-38,586.36-15,385.24

Finding the Fourth Proportional to 27,960.76, 38,586.36 and 15,385.24

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Solution

The fourth proportional to 27,960.76, 38,586.36 and 15,385.24 is: 21,231.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,960.76 : 38,586.36 = 15,385.24 : x
  2. Step 2: Convert to fraction form
    27,960.76/38,586.36 = 15,385.24/x
  3. Step 3: Cross multiply
    27,960.76x = 38,586.36 × 15,385.24
  4. Step 4: Simplify right side
    27,960.76x = 593,660,409.33
  5. Step 5: Solve for x
    x = 593,660,409.33/27,960.76
  6. Step 6: Final answer
    x = 21,231.91

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Double scale
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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.