Home / 27,656.68-38,165.88-15,081.16

Finding the Fourth Proportional to 27,656.68, 38,165.88 and 15,081.16

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Solution

The fourth proportional to 27,656.68, 38,165.88 and 15,081.16 is: 20,811.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,656.68 : 38,165.88 = 15,081.16 : x
  2. Step 2: Convert to fraction form
    27,656.68/38,165.88 = 15,081.16/x
  3. Step 3: Cross multiply
    27,656.68x = 38,165.88 × 15,081.16
  4. Step 4: Simplify right side
    27,656.68x = 575,585,742.82
  5. Step 5: Solve for x
    x = 575,585,742.82/27,656.68
  6. Step 6: Final answer
    x = 20,811.82

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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.