Home / 25,927.14-38,894.49-12,780.30

Finding the Fourth Proportional to 25,927.14, 38,894.49 and 12,780.30

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Solution

The fourth proportional to 25,927.14, 38,894.49 and 12,780.30 is: 19,172.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,927.14 : 38,894.49 = 12,780.30 : x
  2. Step 2: Convert to fraction form
    25,927.14/38,894.49 = 12,780.30/x
  3. Step 3: Cross multiply
    25,927.14x = 38,894.49 × 12,780.30
  4. Step 4: Simplify right side
    25,927.14x = 497,083,250.55
  5. Step 5: Solve for x
    x = 497,083,250.55/25,927.14
  6. Step 6: Final answer
    x = 19,172.31

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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.