Home / 27,859.45-38,446.16-15,923.19

Finding the Fourth Proportional to 27,859.45, 38,446.16 and 15,923.19

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Solution

The fourth proportional to 27,859.45, 38,446.16 and 15,923.19 is: 21,974.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,859.45 : 38,446.16 = 15,923.19 : x
  2. Step 2: Convert to fraction form
    27,859.45/38,446.16 = 15,923.19/x
  3. Step 3: Cross multiply
    27,859.45x = 38,446.16 × 15,923.19
  4. Step 4: Simplify right side
    27,859.45x = 612,185,510.45
  5. Step 5: Solve for x
    x = 612,185,510.45/27,859.45
  6. Step 6: Final answer
    x = 21,974.07

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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.