Home / 21,894.19-30,214.01-12,462.75

Finding the Fourth Proportional to 21,894.19, 30,214.01 and 12,462.75

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Solution

The fourth proportional to 21,894.19, 30,214.01 and 12,462.75 is: 17,198.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,894.19 : 30,214.01 = 12,462.75 : x
  2. Step 2: Convert to fraction form
    21,894.19/30,214.01 = 12,462.75/x
  3. Step 3: Cross multiply
    21,894.19x = 30,214.01 × 12,462.75
  4. Step 4: Simplify right side
    21,894.19x = 376,549,684.28
  5. Step 5: Solve for x
    x = 376,549,684.28/21,894.19
  6. Step 6: Final answer
    x = 17,198.61

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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.