Home / 22,260.19-30,719.07-12,188.64

Finding the Fourth Proportional to 22,260.19, 30,719.07 and 12,188.64

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Solution

The fourth proportional to 22,260.19, 30,719.07 and 12,188.64 is: 16,820.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,260.19 : 30,719.07 = 12,188.64 : x
  2. Step 2: Convert to fraction form
    22,260.19/30,719.07 = 12,188.64/x
  3. Step 3: Cross multiply
    22,260.19x = 30,719.07 × 12,188.64
  4. Step 4: Simplify right side
    22,260.19x = 374,423,685.36
  5. Step 5: Solve for x
    x = 374,423,685.36/22,260.19
  6. Step 6: Final answer
    x = 16,820.33

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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.