Home / 22,330.40-30,814.14-12,899.56

Finding the Fourth Proportional to 22,330.40, 30,814.14 and 12,899.56

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Solution

The fourth proportional to 22,330.40, 30,814.14 and 12,899.56 is: 17,800.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,330.40 : 30,814.14 = 12,899.56 : x
  2. Step 2: Convert to fraction form
    22,330.40/30,814.14 = 12,899.56/x
  3. Step 3: Cross multiply
    22,330.40x = 30,814.14 × 12,899.56
  4. Step 4: Simplify right side
    22,330.40x = 397,488,847.78
  5. Step 5: Solve for x
    x = 397,488,847.78/22,330.40
  6. Step 6: Final answer
    x = 17,800.35

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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.