Home / 19,886.68-27,442.92-11,924.20

Finding the Fourth Proportional to 19,886.68, 27,442.92 and 11,924.20

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Solution

The fourth proportional to 19,886.68, 27,442.92 and 11,924.20 is: 16,454.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,886.68 : 27,442.92 = 11,924.20 : x
  2. Step 2: Convert to fraction form
    19,886.68/27,442.92 = 11,924.20/x
  3. Step 3: Cross multiply
    19,886.68x = 27,442.92 × 11,924.20
  4. Step 4: Simplify right side
    19,886.68x = 327,234,866.66
  5. Step 5: Solve for x
    x = 327,234,866.66/19,886.68
  6. Step 6: Final answer
    x = 16,454.98

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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.