Home / 27,690.14-38,212.20-15,114.89

Finding the Fourth Proportional to 27,690.14, 38,212.20 and 15,114.89

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Solution

The fourth proportional to 27,690.14, 38,212.20 and 15,114.89 is: 20,858.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,690.14 : 38,212.20 = 15,114.89 : x
  2. Step 2: Convert to fraction form
    27,690.14/38,212.20 = 15,114.89/x
  3. Step 3: Cross multiply
    27,690.14x = 38,212.20 × 15,114.89
  4. Step 4: Simplify right side
    27,690.14x = 577,573,008.60
  5. Step 5: Solve for x
    x = 577,573,008.60/27,690.14
  6. Step 6: Final answer
    x = 20,858.44

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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.