Home / 20,246.42-27,942.81-11,748.71

Finding the Fourth Proportional to 20,246.42, 27,942.81 and 11,748.71

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Solution

The fourth proportional to 20,246.42, 27,942.81 and 11,748.71 is: 16,214.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,246.42 : 27,942.81 = 11,748.71 : x
  2. Step 2: Convert to fraction form
    20,246.42/27,942.81 = 11,748.71/x
  3. Step 3: Cross multiply
    20,246.42x = 27,942.81 × 11,748.71
  4. Step 4: Simplify right side
    20,246.42x = 328,291,971.28
  5. Step 5: Solve for x
    x = 328,291,971.28/20,246.42
  6. Step 6: Final answer
    x = 16,214.82

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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.