Home / 22,664-31,276.32-12,729.92

Finding the Fourth Proportional to 22,664, 31,276.32 and 12,729.92

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Solution

The fourth proportional to 22,664, 31,276.32 and 12,729.92 is: 17,567.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,664 : 31,276.32 = 12,729.92 : x
  2. Step 2: Convert to fraction form
    22,664/31,276.32 = 12,729.92/x
  3. Step 3: Cross multiply
    22,664x = 31,276.32 × 12,729.92
  4. Step 4: Simplify right side
    22,664x = 398,145,051.49
  5. Step 5: Solve for x
    x = 398,145,051.49/22,664
  6. Step 6: Final answer
    x = 17,567.29

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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.