Home / 25,919.98-38,890.90-12,772.46

Finding the Fourth Proportional to 25,919.98, 38,890.90 and 12,772.46

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Solution

The fourth proportional to 25,919.98, 38,890.90 and 12,772.46 is: 19,164.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,919.98 : 38,890.90 = 12,772.46 : x
  2. Step 2: Convert to fraction form
    25,919.98/38,890.90 = 12,772.46/x
  3. Step 3: Cross multiply
    25,919.98x = 38,890.90 × 12,772.46
  4. Step 4: Simplify right side
    25,919.98x = 496,732,464.61
  5. Step 5: Solve for x
    x = 496,732,464.61/25,919.98
  6. Step 6: Final answer
    x = 19,164.08

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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.