Home / 27,690.19-38,212.46-15,114.94

Finding the Fourth Proportional to 27,690.19, 38,212.46 and 15,114.94

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Solution

The fourth proportional to 27,690.19, 38,212.46 and 15,114.94 is: 20,858.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,690.19 : 38,212.46 = 15,114.94 : x
  2. Step 2: Convert to fraction form
    27,690.19/38,212.46 = 15,114.94/x
  3. Step 3: Cross multiply
    27,690.19x = 38,212.46 × 15,114.94
  4. Step 4: Simplify right side
    27,690.19x = 577,578,925.73
  5. Step 5: Solve for x
    x = 577,578,925.73/27,690.19
  6. Step 6: Final answer
    x = 20,858.61

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Half scale
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Double 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.