Home / 19,881.36-27,387.27-17,039.61

Finding the Fourth Proportional to 19,881.36, 27,387.27 and 17,039.61

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Solution

The fourth proportional to 19,881.36, 27,387.27 and 17,039.61 is: 23,472.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,881.36 : 27,387.27 = 17,039.61 : x
  2. Step 2: Convert to fraction form
    19,881.36/27,387.27 = 17,039.61/x
  3. Step 3: Cross multiply
    19,881.36x = 27,387.27 × 17,039.61
  4. Step 4: Simplify right side
    19,881.36x = 466,668,399.76
  5. Step 5: Solve for x
    x = 466,668,399.76/19,881.36
  6. Step 6: Final answer
    x = 23,472.66

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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.