Home / 20,770.22-28,682.81-16,519.24

Finding the Fourth Proportional to 20,770.22, 28,682.81 and 16,519.24

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Solution

The fourth proportional to 20,770.22, 28,682.81 and 16,519.24 is: 22,812.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,770.22 : 28,682.81 = 16,519.24 : x
  2. Step 2: Convert to fraction form
    20,770.22/28,682.81 = 16,519.24/x
  3. Step 3: Cross multiply
    20,770.22x = 28,682.81 × 16,519.24
  4. Step 4: Simplify right side
    20,770.22x = 473,818,237.47
  5. Step 5: Solve for x
    x = 473,818,237.47/20,770.22
  6. Step 6: Final answer
    x = 22,812.38

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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.