Home / 19,329.28-28,733.30-18,761.68

Finding the Fourth Proportional to 19,329.28, 28,733.30 and 18,761.68

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Solution

The fourth proportional to 19,329.28, 28,733.30 and 18,761.68 is: 27,889.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,329.28 : 28,733.30 = 18,761.68 : x
  2. Step 2: Convert to fraction form
    19,329.28/28,733.30 = 18,761.68/x
  3. Step 3: Cross multiply
    19,329.28x = 28,733.30 × 18,761.68
  4. Step 4: Simplify right side
    19,329.28x = 539,084,979.94
  5. Step 5: Solve for x
    x = 539,084,979.94/19,329.28
  6. Step 6: Final answer
    x = 27,889.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.