Home / 22,650.11-31,257.95-12,578.72

Finding the Fourth Proportional to 22,650.11, 31,257.95 and 12,578.72

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Solution

The fourth proportional to 22,650.11, 31,257.95 and 12,578.72 is: 17,359.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,650.11 : 31,257.95 = 12,578.72 : x
  2. Step 2: Convert to fraction form
    22,650.11/31,257.95 = 12,578.72/x
  3. Step 3: Cross multiply
    22,650.11x = 31,257.95 × 12,578.72
  4. Step 4: Simplify right side
    22,650.11x = 393,185,000.82
  5. Step 5: Solve for x
    x = 393,185,000.82/22,650.11
  6. Step 6: Final answer
    x = 17,359.08

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.