Home / 20,440.88-30,722.48-16,953.84

Finding the Fourth Proportional to 20,440.88, 30,722.48 and 16,953.84

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Solution

The fourth proportional to 20,440.88, 30,722.48 and 16,953.84 is: 25,481.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,440.88 : 30,722.48 = 16,953.84 : x
  2. Step 2: Convert to fraction form
    20,440.88/30,722.48 = 16,953.84/x
  3. Step 3: Cross multiply
    20,440.88x = 30,722.48 × 16,953.84
  4. Step 4: Simplify right side
    20,440.88x = 520,864,010.32
  5. Step 5: Solve for x
    x = 520,864,010.32/20,440.88
  6. Step 6: Final answer
    x = 25,481.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.