Home / 22,260.56-30,719.60-12,828.88

Finding the Fourth Proportional to 22,260.56, 30,719.60 and 12,828.88

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Solution

The fourth proportional to 22,260.56, 30,719.60 and 12,828.88 is: 17,703.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,260.56 : 30,719.60 = 12,828.88 : x
  2. Step 2: Convert to fraction form
    22,260.56/30,719.60 = 12,828.88/x
  3. Step 3: Cross multiply
    22,260.56x = 30,719.60 × 12,828.88
  4. Step 4: Simplify right side
    22,260.56x = 394,098,062.05
  5. Step 5: Solve for x
    x = 394,098,062.05/22,260.56
  6. Step 6: Final answer
    x = 17,703.87

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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.