Home / 19,873.16-27,423.60-11,911.40

Finding the Fourth Proportional to 19,873.16, 27,423.60 and 11,911.40

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Solution

The fourth proportional to 19,873.16, 27,423.60 and 11,911.40 is: 16,436.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,873.16 : 27,423.60 = 11,911.40 : x
  2. Step 2: Convert to fraction form
    19,873.16/27,423.60 = 11,911.40/x
  3. Step 3: Cross multiply
    19,873.16x = 27,423.60 × 11,911.40
  4. Step 4: Simplify right side
    19,873.16x = 326,653,469.04
  5. Step 5: Solve for x
    x = 326,653,469.04/19,873.16
  6. Step 6: Final answer
    x = 16,436.92

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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.