Home / 28,322.12-42,484.62-10,788.68

Finding the Fourth Proportional to 28,322.12, 42,484.62 and 10,788.68

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Solution

The fourth proportional to 28,322.12, 42,484.62 and 10,788.68 is: 16,183.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,322.12 : 42,484.62 = 10,788.68 : x
  2. Step 2: Convert to fraction form
    28,322.12/42,484.62 = 10,788.68/x
  3. Step 3: Cross multiply
    28,322.12x = 42,484.62 × 10,788.68
  4. Step 4: Simplify right side
    28,322.12x = 458,352,970.10
  5. Step 5: Solve for x
    x = 458,352,970.10/28,322.12
  6. Step 6: Final answer
    x = 16,183.57

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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.