Home / 22,221.74-30,648.98-20,616.73

Finding the Fourth Proportional to 22,221.74, 30,648.98 and 20,616.73

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Solution

The fourth proportional to 22,221.74, 30,648.98 and 20,616.73 is: 28,435.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,221.74 : 30,648.98 = 20,616.73 : x
  2. Step 2: Convert to fraction form
    22,221.74/30,648.98 = 20,616.73/x
  3. Step 3: Cross multiply
    22,221.74x = 30,648.98 × 20,616.73
  4. Step 4: Simplify right side
    22,221.74x = 631,881,720.35
  5. Step 5: Solve for x
    x = 631,881,720.35/22,221.74
  6. Step 6: Final answer
    x = 28,435.29

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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.