Home / 36,538.84-54,788.52-12,840.28

Finding the Fourth Proportional to 36,538.84, 54,788.52 and 12,840.28

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Solution

The fourth proportional to 36,538.84, 54,788.52 and 12,840.28 is: 19,253.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,538.84 : 54,788.52 = 12,840.28 : x
  2. Step 2: Convert to fraction form
    36,538.84/54,788.52 = 12,840.28/x
  3. Step 3: Cross multiply
    36,538.84x = 54,788.52 × 12,840.28
  4. Step 4: Simplify right side
    36,538.84x = 703,499,937.59
  5. Step 5: Solve for x
    x = 703,499,937.59/36,538.84
  6. Step 6: Final answer
    x = 19,253.48

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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.