Home / 27,852.08-38,436.18-15,276.56

Finding the Fourth Proportional to 27,852.08, 38,436.18 and 15,276.56

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Solution

The fourth proportional to 27,852.08, 38,436.18 and 15,276.56 is: 21,081.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,852.08 : 38,436.18 = 15,276.56 : x
  2. Step 2: Convert to fraction form
    27,852.08/38,436.18 = 15,276.56/x
  3. Step 3: Cross multiply
    27,852.08x = 38,436.18 × 15,276.56
  4. Step 4: Simplify right side
    27,852.08x = 587,172,609.94
  5. Step 5: Solve for x
    x = 587,172,609.94/27,852.08
  6. Step 6: Final answer
    x = 21,081.82

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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.