Home / 27,648.92-38,159.46-15,709.88

Finding the Fourth Proportional to 27,648.92, 38,159.46 and 15,709.88

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Solution

The fourth proportional to 27,648.92, 38,159.46 and 15,709.88 is: 21,681.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,648.92 : 38,159.46 = 15,709.88 : x
  2. Step 2: Convert to fraction form
    27,648.92/38,159.46 = 15,709.88/x
  3. Step 3: Cross multiply
    27,648.92x = 38,159.46 × 15,709.88
  4. Step 4: Simplify right side
    27,648.92x = 599,480,537.46
  5. Step 5: Solve for x
    x = 599,480,537.46/27,648.92
  6. Step 6: Final answer
    x = 21,681.88

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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.