Home / 27,906.08-38,510.76-15,330.92

Finding the Fourth Proportional to 27,906.08, 38,510.76 and 15,330.92

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Solution

The fourth proportional to 27,906.08, 38,510.76 and 15,330.92 is: 21,156.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,906.08 : 38,510.76 = 15,330.92 : x
  2. Step 2: Convert to fraction form
    27,906.08/38,510.76 = 15,330.92/x
  3. Step 3: Cross multiply
    27,906.08x = 38,510.76 × 15,330.92
  4. Step 4: Simplify right side
    27,906.08x = 590,405,380.70
  5. Step 5: Solve for x
    x = 590,405,380.70/27,906.08
  6. Step 6: Final answer
    x = 21,156.87

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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.