Home / 35,078.40-52,640.64-12,891.96

Finding the Fourth Proportional to 35,078.40, 52,640.64 and 12,891.96

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Solution

The fourth proportional to 35,078.40, 52,640.64 and 12,891.96 is: 19,346.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,078.40 : 52,640.64 = 12,891.96 : x
  2. Step 2: Convert to fraction form
    35,078.40/52,640.64 = 12,891.96/x
  3. Step 3: Cross multiply
    35,078.40x = 52,640.64 × 12,891.96
  4. Step 4: Simplify right side
    35,078.40x = 678,641,025.25
  5. Step 5: Solve for x
    x = 678,641,025.25/35,078.40
  6. Step 6: Final answer
    x = 19,346.41

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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.