Home / 42,455.07-63,682.77-12,873.15

Finding the Fourth Proportional to 42,455.07, 63,682.77 and 12,873.15

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Solution

The fourth proportional to 42,455.07, 63,682.77 and 12,873.15 is: 19,309.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,455.07 : 63,682.77 = 12,873.15 : x
  2. Step 2: Convert to fraction form
    42,455.07/63,682.77 = 12,873.15/x
  3. Step 3: Cross multiply
    42,455.07x = 63,682.77 × 12,873.15
  4. Step 4: Simplify right side
    42,455.07x = 819,797,850.63
  5. Step 5: Solve for x
    x = 819,797,850.63/42,455.07
  6. Step 6: Final answer
    x = 19,309.78

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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.