Home / 31,282.69-43,170.12-17,136.04

Finding the Fourth Proportional to 31,282.69, 43,170.12 and 17,136.04

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Solution

The fourth proportional to 31,282.69, 43,170.12 and 17,136.04 is: 23,647.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,282.69 : 43,170.12 = 17,136.04 : x
  2. Step 2: Convert to fraction form
    31,282.69/43,170.12 = 17,136.04/x
  3. Step 3: Cross multiply
    31,282.69x = 43,170.12 × 17,136.04
  4. Step 4: Simplify right side
    31,282.69x = 739,764,903.12
  5. Step 5: Solve for x
    x = 739,764,903.12/31,282.69
  6. Step 6: Final answer
    x = 23,647.74

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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.