Home / 29,136.84-40,209.12-16,561.68

Finding the Fourth Proportional to 29,136.84, 40,209.12 and 16,561.68

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Solution

The fourth proportional to 29,136.84, 40,209.12 and 16,561.68 is: 22,855.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,136.84 : 40,209.12 = 16,561.68 : x
  2. Step 2: Convert to fraction form
    29,136.84/40,209.12 = 16,561.68/x
  3. Step 3: Cross multiply
    29,136.84x = 40,209.12 × 16,561.68
  4. Step 4: Simplify right side
    29,136.84x = 665,930,578.52
  5. Step 5: Solve for x
    x = 665,930,578.52/29,136.84
  6. Step 6: Final answer
    x = 22,855.28

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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.