Home / 22,340.12-30,829.41-12,269.21

Finding the Fourth Proportional to 22,340.12, 30,829.41 and 12,269.21

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Solution

The fourth proportional to 22,340.12, 30,829.41 and 12,269.21 is: 16,931.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,340.12 : 30,829.41 = 12,269.21 : x
  2. Step 2: Convert to fraction form
    22,340.12/30,829.41 = 12,269.21/x
  3. Step 3: Cross multiply
    22,340.12x = 30,829.41 × 12,269.21
  4. Step 4: Simplify right side
    22,340.12x = 378,252,444.12
  5. Step 5: Solve for x
    x = 378,252,444.12/22,340.12
  6. Step 6: Final answer
    x = 16,931.53

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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.