Home / 22,549.53-31,120.68-12,989.73

Finding the Fourth Proportional to 22,549.53, 31,120.68 and 12,989.73

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Solution

The fourth proportional to 22,549.53, 31,120.68 and 12,989.73 is: 17,927.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,549.53 : 31,120.68 = 12,989.73 : x
  2. Step 2: Convert to fraction form
    22,549.53/31,120.68 = 12,989.73/x
  3. Step 3: Cross multiply
    22,549.53x = 31,120.68 × 12,989.73
  4. Step 4: Simplify right side
    22,549.53x = 404,249,230.62
  5. Step 5: Solve for x
    x = 404,249,230.62/22,549.53
  6. Step 6: Final answer
    x = 17,927.17

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1.5x scale

Why These Related Problems?

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