Home / 22,217.50-30,660.08-12,145.94

Finding the Fourth Proportional to 22,217.50, 30,660.08 and 12,145.94

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Solution

The fourth proportional to 22,217.50, 30,660.08 and 12,145.94 is: 16,761.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,217.50 : 30,660.08 = 12,145.94 : x
  2. Step 2: Convert to fraction form
    22,217.50/30,660.08 = 12,145.94/x
  3. Step 3: Cross multiply
    22,217.50x = 30,660.08 × 12,145.94
  4. Step 4: Simplify right side
    22,217.50x = 372,395,492.08
  5. Step 5: Solve for x
    x = 372,395,492.08/22,217.50
  6. Step 6: Final answer
    x = 16,761.36

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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.