Home / 27,691.83-38,214.86-15,116.67

Finding the Fourth Proportional to 27,691.83, 38,214.86 and 15,116.67

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Solution

The fourth proportional to 27,691.83, 38,214.86 and 15,116.67 is: 20,861.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,691.83 : 38,214.86 = 15,116.67 : x
  2. Step 2: Convert to fraction form
    27,691.83/38,214.86 = 15,116.67/x
  3. Step 3: Cross multiply
    27,691.83x = 38,214.86 × 15,116.67
  4. Step 4: Simplify right side
    27,691.83x = 577,681,352.13
  5. Step 5: Solve for x
    x = 577,681,352.13/27,691.83
  6. Step 6: Final answer
    x = 20,861.08

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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.