Home / 22,717-31,349.45-12,645.23

Finding the Fourth Proportional to 22,717, 31,349.45 and 12,645.23

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Solution

The fourth proportional to 22,717, 31,349.45 and 12,645.23 is: 17,450.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,717 : 31,349.45 = 12,645.23 : x
  2. Step 2: Convert to fraction form
    22,717/31,349.45 = 12,645.23/x
  3. Step 3: Cross multiply
    22,717x = 31,349.45 × 12,645.23
  4. Step 4: Simplify right side
    22,717x = 396,421,005.62
  5. Step 5: Solve for x
    x = 396,421,005.62/22,717
  6. Step 6: Final answer
    x = 17,450.41

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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.