Home / 27,730.88-38,267.76-15,795.92

Finding the Fourth Proportional to 27,730.88, 38,267.76 and 15,795.92

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Solution

The fourth proportional to 27,730.88, 38,267.76 and 15,795.92 is: 21,797.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,730.88 : 38,267.76 = 15,795.92 : x
  2. Step 2: Convert to fraction form
    27,730.88/38,267.76 = 15,795.92/x
  3. Step 3: Cross multiply
    27,730.88x = 38,267.76 × 15,795.92
  4. Step 4: Simplify right side
    27,730.88x = 604,474,475.54
  5. Step 5: Solve for x
    x = 604,474,475.54/27,730.88
  6. Step 6: Final answer
    x = 21,797.88

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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.