Home / 38,633.58-57,972.13-20,863.98

Finding the Fourth Proportional to 38,633.58, 57,972.13 and 20,863.98

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Solution

The fourth proportional to 38,633.58, 57,972.13 and 20,863.98 is: 31,307.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,633.58 : 57,972.13 = 20,863.98 : x
  2. Step 2: Convert to fraction form
    38,633.58/57,972.13 = 20,863.98/x
  3. Step 3: Cross multiply
    38,633.58x = 57,972.13 × 20,863.98
  4. Step 4: Simplify right side
    38,633.58x = 1,209,529,367.40
  5. Step 5: Solve for x
    x = 1,209,529,367.40/38,633.58
  6. Step 6: Final answer
    x = 31,307.72

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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.