Home / 25,930.65-38,898.02-12,775.85

Finding the Fourth Proportional to 25,930.65, 38,898.02 and 12,775.85

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Solution

The fourth proportional to 25,930.65, 38,898.02 and 12,775.85 is: 19,164.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,930.65 : 38,898.02 = 12,775.85 : x
  2. Step 2: Convert to fraction form
    25,930.65/38,898.02 = 12,775.85/x
  3. Step 3: Cross multiply
    25,930.65x = 38,898.02 × 12,775.85
  4. Step 4: Simplify right side
    25,930.65x = 496,955,010.45
  5. Step 5: Solve for x
    x = 496,955,010.45/25,930.65
  6. Step 6: Final answer
    x = 19,164.77

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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.