Home / 27,809.63-38,377.91-15,872.73

Finding the Fourth Proportional to 27,809.63, 38,377.91 and 15,872.73

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Solution

The fourth proportional to 27,809.63, 38,377.91 and 15,872.73 is: 21,904.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,809.63 : 38,377.91 = 15,872.73 : x
  2. Step 2: Convert to fraction form
    27,809.63/38,377.91 = 15,872.73/x
  3. Step 3: Cross multiply
    27,809.63x = 38,377.91 × 15,872.73
  4. Step 4: Simplify right side
    27,809.63x = 609,162,203.39
  5. Step 5: Solve for x
    x = 609,162,203.39/27,809.63
  6. Step 6: Final answer
    x = 21,904.72

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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.