Home / 28,395.84-39,186-16,463.04

Finding the Fourth Proportional to 28,395.84, 39,186 and 16,463.04

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Solution

The fourth proportional to 28,395.84, 39,186 and 16,463.04 is: 22,718.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,395.84 : 39,186 = 16,463.04 : x
  2. Step 2: Convert to fraction form
    28,395.84/39,186 = 16,463.04/x
  3. Step 3: Cross multiply
    28,395.84x = 39,186 × 16,463.04
  4. Step 4: Simplify right side
    28,395.84x = 645,120,685.44
  5. Step 5: Solve for x
    x = 645,120,685.44/28,395.84
  6. Step 6: Final answer
    x = 22,718.84

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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.