Home / 38,553.18-57,790.38-21,878.00

Finding the Fourth Proportional to 38,553.18, 57,790.38 and 21,878.00

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Solution

The fourth proportional to 38,553.18, 57,790.38 and 21,878.00 is: 32,794.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,553.18 : 57,790.38 = 21,878.00 : x
  2. Step 2: Convert to fraction form
    38,553.18/57,790.38 = 21,878.00/x
  3. Step 3: Cross multiply
    38,553.18x = 57,790.38 × 21,878.00
  4. Step 4: Simplify right side
    38,553.18x = 1,264,337,644.69
  5. Step 5: Solve for x
    x = 1,264,337,644.69/38,553.18
  6. Step 6: Final answer
    x = 32,794.64

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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.