Home / 38,438.76-57,554.30-19,931.88

Finding the Fourth Proportional to 38,438.76, 57,554.30 and 19,931.88

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Solution

The fourth proportional to 38,438.76, 57,554.30 and 19,931.88 is: 29,843.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,438.76 : 57,554.30 = 19,931.88 : x
  2. Step 2: Convert to fraction form
    38,438.76/57,554.30 = 19,931.88/x
  3. Step 3: Cross multiply
    38,438.76x = 57,554.30 × 19,931.88
  4. Step 4: Simplify right side
    38,438.76x = 1,147,165,401.08
  5. Step 5: Solve for x
    x = 1,147,165,401.08/38,438.76
  6. Step 6: Final answer
    x = 29,843.98

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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.