Home / 22,279.14-30,749.27-12,847.70

Finding the Fourth Proportional to 22,279.14, 30,749.27 and 12,847.70

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Solution

The fourth proportional to 22,279.14, 30,749.27 and 12,847.70 is: 17,732.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,279.14 : 30,749.27 = 12,847.70 : x
  2. Step 2: Convert to fraction form
    22,279.14/30,749.27 = 12,847.70/x
  3. Step 3: Cross multiply
    22,279.14x = 30,749.27 × 12,847.70
  4. Step 4: Simplify right side
    22,279.14x = 395,057,178.19
  5. Step 5: Solve for x
    x = 395,057,178.19/22,279.14
  6. Step 6: Final answer
    x = 17,732.16

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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.