Home / 28,361.84-39,136.95-16,718.21

Finding the Fourth Proportional to 28,361.84, 39,136.95 and 16,718.21

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Solution

The fourth proportional to 28,361.84, 39,136.95 and 16,718.21 is: 23,069.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,361.84 : 39,136.95 = 16,718.21 : x
  2. Step 2: Convert to fraction form
    28,361.84/39,136.95 = 16,718.21/x
  3. Step 3: Cross multiply
    28,361.84x = 39,136.95 × 16,718.21
  4. Step 4: Simplify right side
    28,361.84x = 654,299,553.17
  5. Step 5: Solve for x
    x = 654,299,553.17/28,361.84
  6. Step 6: Final answer
    x = 23,069.71

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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.