Home / 22,208.62-30,649.64-12,648.91

Finding the Fourth Proportional to 22,208.62, 30,649.64 and 12,648.91

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Solution

The fourth proportional to 22,208.62, 30,649.64 and 12,648.91 is: 17,456.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,208.62 : 30,649.64 = 12,648.91 : x
  2. Step 2: Convert to fraction form
    22,208.62/30,649.64 = 12,648.91/x
  3. Step 3: Cross multiply
    22,208.62x = 30,649.64 × 12,648.91
  4. Step 4: Simplify right side
    22,208.62x = 387,684,537.89
  5. Step 5: Solve for x
    x = 387,684,537.89/22,208.62
  6. Step 6: Final answer
    x = 17,456.49

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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.