Home / 19,874.14-27,421.59-11,917.02

Finding the Fourth Proportional to 19,874.14, 27,421.59 and 11,917.02

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Solution

The fourth proportional to 19,874.14, 27,421.59 and 11,917.02 is: 16,442.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,874.14 : 27,421.59 = 11,917.02 : x
  2. Step 2: Convert to fraction form
    19,874.14/27,421.59 = 11,917.02/x
  3. Step 3: Cross multiply
    19,874.14x = 27,421.59 × 11,917.02
  4. Step 4: Simplify right side
    19,874.14x = 326,783,636.46
  5. Step 5: Solve for x
    x = 326,783,636.46/19,874.14
  6. Step 6: Final answer
    x = 16,442.66

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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.