Home / 30,348.39-41,887.50-19,719.57

Finding the Fourth Proportional to 30,348.39, 41,887.50 and 19,719.57

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Solution

The fourth proportional to 30,348.39, 41,887.50 and 19,719.57 is: 27,217.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,348.39 : 41,887.50 = 19,719.57 : x
  2. Step 2: Convert to fraction form
    30,348.39/41,887.50 = 19,719.57/x
  3. Step 3: Cross multiply
    30,348.39x = 41,887.50 × 19,719.57
  4. Step 4: Simplify right side
    30,348.39x = 826,003,488.38
  5. Step 5: Solve for x
    x = 826,003,488.38/30,348.39
  6. Step 6: Final answer
    x = 27,217.37

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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.