Home / 27,693.46-38,217.63-15,118.30

Finding the Fourth Proportional to 27,693.46, 38,217.63 and 15,118.30

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Solution

The fourth proportional to 27,693.46, 38,217.63 and 15,118.30 is: 20,863.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,693.46 : 38,217.63 = 15,118.30 : x
  2. Step 2: Convert to fraction form
    27,693.46/38,217.63 = 15,118.30/x
  3. Step 3: Cross multiply
    27,693.46x = 38,217.63 × 15,118.30
  4. Step 4: Simplify right side
    27,693.46x = 577,785,595.63
  5. Step 5: Solve for x
    x = 577,785,595.63/27,693.46
  6. Step 6: Final answer
    x = 20,863.61

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Half scale
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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.