Home / 22,157.72-30,579.47-12,600.60

Finding the Fourth Proportional to 22,157.72, 30,579.47 and 12,600.60

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Solution

The fourth proportional to 22,157.72, 30,579.47 and 12,600.60 is: 17,389.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,157.72 : 30,579.47 = 12,600.60 : x
  2. Step 2: Convert to fraction form
    22,157.72/30,579.47 = 12,600.60/x
  3. Step 3: Cross multiply
    22,157.72x = 30,579.47 × 12,600.60
  4. Step 4: Simplify right side
    22,157.72x = 385,319,669.68
  5. Step 5: Solve for x
    x = 385,319,669.68/22,157.72
  6. Step 6: Final answer
    x = 17,389.86

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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.