Home / 25,178.48-37,784.35-11,855.28

Finding the Fourth Proportional to 25,178.48, 37,784.35 and 11,855.28

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Solution

The fourth proportional to 25,178.48, 37,784.35 and 11,855.28 is: 17,790.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,178.48 : 37,784.35 = 11,855.28 : x
  2. Step 2: Convert to fraction form
    25,178.48/37,784.35 = 11,855.28/x
  3. Step 3: Cross multiply
    25,178.48x = 37,784.35 × 11,855.28
  4. Step 4: Simplify right side
    25,178.48x = 447,943,800.67
  5. Step 5: Solve for x
    x = 447,943,800.67/25,178.48
  6. Step 6: Final answer
    x = 17,790.74

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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.