Home / 30,348.39-41,887.49-19,719.57

Finding the Fourth Proportional to 30,348.39, 41,887.49 and 19,719.57

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Solution

The fourth proportional to 30,348.39, 41,887.49 and 19,719.57 is: 27,217.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,348.39 : 41,887.49 = 19,719.57 : x
  2. Step 2: Convert to fraction form
    30,348.39/41,887.49 = 19,719.57/x
  3. Step 3: Cross multiply
    30,348.39x = 41,887.49 × 19,719.57
  4. Step 4: Simplify right side
    30,348.39x = 826,003,192.58
  5. Step 5: Solve for x
    x = 826,003,192.58/30,348.39
  6. Step 6: Final answer
    x = 27,217.36

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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.