Home / 38,515.35-57,866.37-36,391.20

Finding the Fourth Proportional to 38,515.35, 57,866.37 and 36,391.20

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Solution

The fourth proportional to 38,515.35, 57,866.37 and 36,391.20 is: 54,675.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,515.35 : 57,866.37 = 36,391.20 : x
  2. Step 2: Convert to fraction form
    38,515.35/57,866.37 = 36,391.20/x
  3. Step 3: Cross multiply
    38,515.35x = 57,866.37 × 36,391.20
  4. Step 4: Simplify right side
    38,515.35x = 2,105,826,643.94
  5. Step 5: Solve for x
    x = 2,105,826,643.94/38,515.35
  6. Step 6: Final answer
    x = 54,675.00

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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.