Home / 22,279.72-30,724.74-13,325.80

Finding the Fourth Proportional to 22,279.72, 30,724.74 and 13,325.80

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Solution

The fourth proportional to 22,279.72, 30,724.74 and 13,325.80 is: 18,376.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,279.72 : 30,724.74 = 13,325.80 : x
  2. Step 2: Convert to fraction form
    22,279.72/30,724.74 = 13,325.80/x
  3. Step 3: Cross multiply
    22,279.72x = 30,724.74 × 13,325.80
  4. Step 4: Simplify right side
    22,279.72x = 409,431,740.29
  5. Step 5: Solve for x
    x = 409,431,740.29/22,279.72
  6. Step 6: Final answer
    x = 18,376.88

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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.