Home / 27,858.45-38,444.78-15,922.19

Finding the Fourth Proportional to 27,858.45, 38,444.78 and 15,922.19

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Solution

The fourth proportional to 27,858.45, 38,444.78 and 15,922.19 is: 21,972.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,858.45 : 38,444.78 = 15,922.19 : x
  2. Step 2: Convert to fraction form
    27,858.45/38,444.78 = 15,922.19/x
  3. Step 3: Cross multiply
    27,858.45x = 38,444.78 × 15,922.19
  4. Step 4: Simplify right side
    27,858.45x = 612,124,819.83
  5. Step 5: Solve for x
    x = 612,124,819.83/27,858.45
  6. Step 6: Final answer
    x = 21,972.68

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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.