Home / 38,516.49-57,755.29-18,765.45

Finding the Fourth Proportional to 38,516.49, 57,755.29 and 18,765.45

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Solution

The fourth proportional to 38,516.49, 57,755.29 and 18,765.45 is: 28,138.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,516.49 : 57,755.29 = 18,765.45 : x
  2. Step 2: Convert to fraction form
    38,516.49/57,755.29 = 18,765.45/x
  3. Step 3: Cross multiply
    38,516.49x = 57,755.29 × 18,765.45
  4. Step 4: Simplify right side
    38,516.49x = 1,083,804,006.73
  5. Step 5: Solve for x
    x = 1,083,804,006.73/38,516.49
  6. Step 6: Final answer
    x = 28,138.70

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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.