Home / 19,939.52-27,516.24-11,878.88

Finding the Fourth Proportional to 19,939.52, 27,516.24 and 11,878.88

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Solution

The fourth proportional to 19,939.52, 27,516.24 and 11,878.88 is: 16,392.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,939.52 : 27,516.24 = 11,878.88 : x
  2. Step 2: Convert to fraction form
    19,939.52/27,516.24 = 11,878.88/x
  3. Step 3: Cross multiply
    19,939.52x = 27,516.24 × 11,878.88
  4. Step 4: Simplify right side
    19,939.52x = 326,862,113.01
  5. Step 5: Solve for x
    x = 326,862,113.01/19,939.52
  6. Step 6: Final answer
    x = 16,392.68

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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.