Home / 21,894.57-30,216.78-12,463.74

Finding the Fourth Proportional to 21,894.57, 30,216.78 and 12,463.74

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Solution

The fourth proportional to 21,894.57, 30,216.78 and 12,463.74 is: 17,201.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,894.57 : 30,216.78 = 12,463.74 : x
  2. Step 2: Convert to fraction form
    21,894.57/30,216.78 = 12,463.74/x
  3. Step 3: Cross multiply
    21,894.57x = 30,216.78 × 12,463.74
  4. Step 4: Simplify right side
    21,894.57x = 376,614,089.56
  5. Step 5: Solve for x
    x = 376,614,089.56/21,894.57
  6. Step 6: Final answer
    x = 17,201.26

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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.