Home / 22,199.28-30,635.46-12,768.45

Finding the Fourth Proportional to 22,199.28, 30,635.46 and 12,768.45

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Solution

The fourth proportional to 22,199.28, 30,635.46 and 12,768.45 is: 17,620.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,199.28 : 30,635.46 = 12,768.45 : x
  2. Step 2: Convert to fraction form
    22,199.28/30,635.46 = 12,768.45/x
  3. Step 3: Cross multiply
    22,199.28x = 30,635.46 × 12,768.45
  4. Step 4: Simplify right side
    22,199.28x = 391,167,339.24
  5. Step 5: Solve for x
    x = 391,167,339.24/22,199.28
  6. Step 6: Final answer
    x = 17,620.72

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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.