Home / 28,788.62-43,176.44-10,320.62

Finding the Fourth Proportional to 28,788.62, 43,176.44 and 10,320.62

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Solution

The fourth proportional to 28,788.62, 43,176.44 and 10,320.62 is: 15,478.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,788.62 : 43,176.44 = 10,320.62 : x
  2. Step 2: Convert to fraction form
    28,788.62/43,176.44 = 10,320.62/x
  3. Step 3: Cross multiply
    28,788.62x = 43,176.44 × 10,320.62
  4. Step 4: Simplify right side
    28,788.62x = 445,607,440.11
  5. Step 5: Solve for x
    x = 445,607,440.11/28,788.62
  6. Step 6: Final answer
    x = 15,478.60

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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.