Home / 28,328.85-42,495.94-8,338.35

Finding the Fourth Proportional to 28,328.85, 42,495.94 and 8,338.35

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Solution

The fourth proportional to 28,328.85, 42,495.94 and 8,338.35 is: 12,508.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,328.85 : 42,495.94 = 8,338.35 : x
  2. Step 2: Convert to fraction form
    28,328.85/42,495.94 = 8,338.35/x
  3. Step 3: Cross multiply
    28,328.85x = 42,495.94 × 8,338.35
  4. Step 4: Simplify right side
    28,328.85x = 354,346,191.08
  5. Step 5: Solve for x
    x = 354,346,191.08/28,328.85
  6. Step 6: Final answer
    x = 12,508.32

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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.