Home / 22,945.78-31,664.05-13,007.86

Finding the Fourth Proportional to 22,945.78, 31,664.05 and 13,007.86

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Solution

The fourth proportional to 22,945.78, 31,664.05 and 13,007.86 is: 17,950.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,945.78 : 31,664.05 = 13,007.86 : x
  2. Step 2: Convert to fraction form
    22,945.78/31,664.05 = 13,007.86/x
  3. Step 3: Cross multiply
    22,945.78x = 31,664.05 × 13,007.86
  4. Step 4: Simplify right side
    22,945.78x = 411,881,529.43
  5. Step 5: Solve for x
    x = 411,881,529.43/22,945.78
  6. Step 6: Final answer
    x = 17,950.21

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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.