Home / 25,355.10-38,021.55-12,031.89

Finding the Fourth Proportional to 25,355.10, 38,021.55 and 12,031.89

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Solution

The fourth proportional to 25,355.10, 38,021.55 and 12,031.89 is: 18,042.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,355.10 : 38,021.55 = 12,031.89 : x
  2. Step 2: Convert to fraction form
    25,355.10/38,021.55 = 12,031.89/x
  3. Step 3: Cross multiply
    25,355.10x = 38,021.55 × 12,031.89
  4. Step 4: Simplify right side
    25,355.10x = 457,471,107.23
  5. Step 5: Solve for x
    x = 457,471,107.23/25,355.10
  6. Step 6: Final answer
    x = 18,042.57

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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.