Home / 22,386.20-30,893.76-12,315.41

Finding the Fourth Proportional to 22,386.20, 30,893.76 and 12,315.41

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Solution

The fourth proportional to 22,386.20, 30,893.76 and 12,315.41 is: 16,995.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,386.20 : 30,893.76 = 12,315.41 : x
  2. Step 2: Convert to fraction form
    22,386.20/30,893.76 = 12,315.41/x
  3. Step 3: Cross multiply
    22,386.20x = 30,893.76 × 12,315.41
  4. Step 4: Simplify right side
    22,386.20x = 380,469,259.26
  5. Step 5: Solve for x
    x = 380,469,259.26/22,386.20
  6. Step 6: Final answer
    x = 16,995.71

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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.