Home / 19,951.18-27,530.40-11,451.04

Finding the Fourth Proportional to 19,951.18, 27,530.40 and 11,451.04

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Solution

The fourth proportional to 19,951.18, 27,530.40 and 11,451.04 is: 15,801.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,951.18 : 27,530.40 = 11,451.04 : x
  2. Step 2: Convert to fraction form
    19,951.18/27,530.40 = 11,451.04/x
  3. Step 3: Cross multiply
    19,951.18x = 27,530.40 × 11,451.04
  4. Step 4: Simplify right side
    19,951.18x = 315,251,711.62
  5. Step 5: Solve for x
    x = 315,251,711.62/19,951.18
  6. Step 6: Final answer
    x = 15,801.16

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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.