Home / 20,450.22-28,226.43-12,497.10

Finding the Fourth Proportional to 20,450.22, 28,226.43 and 12,497.10

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Solution

The fourth proportional to 20,450.22, 28,226.43 and 12,497.10 is: 17,249.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,450.22 : 28,226.43 = 12,497.10 : x
  2. Step 2: Convert to fraction form
    20,450.22/28,226.43 = 12,497.10/x
  3. Step 3: Cross multiply
    20,450.22x = 28,226.43 × 12,497.10
  4. Step 4: Simplify right side
    20,450.22x = 352,748,518.35
  5. Step 5: Solve for x
    x = 352,748,518.35/20,450.22
  6. Step 6: Final answer
    x = 17,249.13

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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.