Home / 18,924.42-28,376.91-8,530.50

Finding the Fourth Proportional to 18,924.42, 28,376.91 and 8,530.50

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Solution

The fourth proportional to 18,924.42, 28,376.91 and 8,530.50 is: 12,791.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,924.42 : 28,376.91 = 8,530.50 : x
  2. Step 2: Convert to fraction form
    18,924.42/28,376.91 = 8,530.50/x
  3. Step 3: Cross multiply
    18,924.42x = 28,376.91 × 8,530.50
  4. Step 4: Simplify right side
    18,924.42x = 242,069,230.76
  5. Step 5: Solve for x
    x = 242,069,230.76/18,924.42
  6. Step 6: Final answer
    x = 12,791.37

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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.