Home / 19,419.17-29,133.39-11,528.55

Finding the Fourth Proportional to 19,419.17, 29,133.39 and 11,528.55

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Solution

The fourth proportional to 19,419.17, 29,133.39 and 11,528.55 is: 17,295.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,419.17 : 29,133.39 = 11,528.55 : x
  2. Step 2: Convert to fraction form
    19,419.17/29,133.39 = 11,528.55/x
  3. Step 3: Cross multiply
    19,419.17x = 29,133.39 × 11,528.55
  4. Step 4: Simplify right side
    19,419.17x = 335,865,743.28
  5. Step 5: Solve for x
    x = 335,865,743.28/19,419.17
  6. Step 6: Final answer
    x = 17,295.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.