Home / 35,078.64-52,640.88-12,892.20

Finding the Fourth Proportional to 35,078.64, 52,640.88 and 12,892.20

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Solution

The fourth proportional to 35,078.64, 52,640.88 and 12,892.20 is: 19,346.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,078.64 : 52,640.88 = 12,892.20 : x
  2. Step 2: Convert to fraction form
    35,078.64/52,640.88 = 12,892.20/x
  3. Step 3: Cross multiply
    35,078.64x = 52,640.88 × 12,892.20
  4. Step 4: Simplify right side
    35,078.64x = 678,656,753.14
  5. Step 5: Solve for x
    x = 678,656,753.14/35,078.64
  6. Step 6: Final answer
    x = 19,346.72

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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.