Home / 21,282.68-29,369.69-14,568.14

Finding the Fourth Proportional to 21,282.68, 29,369.69 and 14,568.14

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Solution

The fourth proportional to 21,282.68, 29,369.69 and 14,568.14 is: 20,103.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,282.68 : 29,369.69 = 14,568.14 : x
  2. Step 2: Convert to fraction form
    21,282.68/29,369.69 = 14,568.14/x
  3. Step 3: Cross multiply
    21,282.68x = 29,369.69 × 14,568.14
  4. Step 4: Simplify right side
    21,282.68x = 427,861,645.69
  5. Step 5: Solve for x
    x = 427,861,645.69/21,282.68
  6. Step 6: Final answer
    x = 20,103.75

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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.