Home / 22,563.42-31,137.14-12,491.66

Finding the Fourth Proportional to 22,563.42, 31,137.14 and 12,491.66

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Solution

The fourth proportional to 22,563.42, 31,137.14 and 12,491.66 is: 17,238.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,563.42 : 31,137.14 = 12,491.66 : x
  2. Step 2: Convert to fraction form
    22,563.42/31,137.14 = 12,491.66/x
  3. Step 3: Cross multiply
    22,563.42x = 31,137.14 × 12,491.66
  4. Step 4: Simplify right side
    22,563.42x = 388,954,566.25
  5. Step 5: Solve for x
    x = 388,954,566.25/22,563.42
  6. Step 6: Final answer
    x = 17,238.28

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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.