Home / 20,416.32-30,744.39-17,814.85

Finding the Fourth Proportional to 20,416.32, 30,744.39 and 17,814.85

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Solution

The fourth proportional to 20,416.32, 30,744.39 and 17,814.85 is: 26,826.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,416.32 : 30,744.39 = 17,814.85 : x
  2. Step 2: Convert to fraction form
    20,416.32/30,744.39 = 17,814.85/x
  3. Step 3: Cross multiply
    20,416.32x = 30,744.39 × 17,814.85
  4. Step 4: Simplify right side
    20,416.32x = 547,706,859.07
  5. Step 5: Solve for x
    x = 547,706,859.07/20,416.32
  6. Step 6: Final answer
    x = 26,826.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.