Home / 19,661.68-29,423.22-12,269.62

Finding the Fourth Proportional to 19,661.68, 29,423.22 and 12,269.62

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Solution

The fourth proportional to 19,661.68, 29,423.22 and 12,269.62 is: 18,361.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,661.68 : 29,423.22 = 12,269.62 : x
  2. Step 2: Convert to fraction form
    19,661.68/29,423.22 = 12,269.62/x
  3. Step 3: Cross multiply
    19,661.68x = 29,423.22 × 12,269.62
  4. Step 4: Simplify right side
    19,661.68x = 361,011,728.58
  5. Step 5: Solve for x
    x = 361,011,728.58/19,661.68
  6. Step 6: Final answer
    x = 18,361.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.