Home / 38,490.34-57,628.99-19,729.93

Finding the Fourth Proportional to 38,490.34, 57,628.99 and 19,729.93

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Solution

The fourth proportional to 38,490.34, 57,628.99 and 19,729.93 is: 29,540.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,490.34 : 57,628.99 = 19,729.93 : x
  2. Step 2: Convert to fraction form
    38,490.34/57,628.99 = 19,729.93/x
  3. Step 3: Cross multiply
    38,490.34x = 57,628.99 × 19,729.93
  4. Step 4: Simplify right side
    38,490.34x = 1,137,015,938.67
  5. Step 5: Solve for x
    x = 1,137,015,938.67/38,490.34
  6. Step 6: Final answer
    x = 29,540.29

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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.