Home / 19,790.68-29,638.62-14,439.64

Finding the Fourth Proportional to 19,790.68, 29,638.62 and 14,439.64

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Solution

The fourth proportional to 19,790.68, 29,638.62 and 14,439.64 is: 21,624.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,790.68 : 29,638.62 = 14,439.64 : x
  2. Step 2: Convert to fraction form
    19,790.68/29,638.62 = 14,439.64/x
  3. Step 3: Cross multiply
    19,790.68x = 29,638.62 × 14,439.64
  4. Step 4: Simplify right side
    19,790.68x = 427,971,002.90
  5. Step 5: Solve for x
    x = 427,971,002.90/19,790.68
  6. Step 6: Final answer
    x = 21,624.88

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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.