Home / 20,451.34-28,223.64-12,497.14

Finding the Fourth Proportional to 20,451.34, 28,223.64 and 12,497.14

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Solution

The fourth proportional to 20,451.34, 28,223.64 and 12,497.14 is: 17,246.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,451.34 : 28,223.64 = 12,497.14 : x
  2. Step 2: Convert to fraction form
    20,451.34/28,223.64 = 12,497.14/x
  3. Step 3: Cross multiply
    20,451.34x = 28,223.64 × 12,497.14
  4. Step 4: Simplify right side
    20,451.34x = 352,714,780.39
  5. Step 5: Solve for x
    x = 352,714,780.39/20,451.34
  6. Step 6: Final answer
    x = 17,246.54

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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.