Home / 22,564.06-31,137.39-12,491.79

Finding the Fourth Proportional to 22,564.06, 31,137.39 and 12,491.79

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Solution

The fourth proportional to 22,564.06, 31,137.39 and 12,491.79 is: 17,238.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,564.06 : 31,137.39 = 12,491.79 : x
  2. Step 2: Convert to fraction form
    22,564.06/31,137.39 = 12,491.79/x
  3. Step 3: Cross multiply
    22,564.06x = 31,137.39 × 12,491.79
  4. Step 4: Simplify right side
    22,564.06x = 388,961,737.03
  5. Step 5: Solve for x
    x = 388,961,737.03/22,564.06
  6. Step 6: Final answer
    x = 17,238.11

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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.