Home / 22,385.49-30,890.41-12,314.36

Finding the Fourth Proportional to 22,385.49, 30,890.41 and 12,314.36

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Solution

The fourth proportional to 22,385.49, 30,890.41 and 12,314.36 is: 16,992.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,385.49 : 30,890.41 = 12,314.36 : x
  2. Step 2: Convert to fraction form
    22,385.49/30,890.41 = 12,314.36/x
  3. Step 3: Cross multiply
    22,385.49x = 30,890.41 × 12,314.36
  4. Step 4: Simplify right side
    22,385.49x = 380,395,444.05
  5. Step 5: Solve for x
    x = 380,395,444.05/22,385.49
  6. Step 6: Final answer
    x = 16,992.95

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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.