Home / 28,680.11-39,574.28-16,102.43

Finding the Fourth Proportional to 28,680.11, 39,574.28 and 16,102.43

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Solution

The fourth proportional to 28,680.11, 39,574.28 and 16,102.43 is: 22,218.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,680.11 : 39,574.28 = 16,102.43 : x
  2. Step 2: Convert to fraction form
    28,680.11/39,574.28 = 16,102.43/x
  3. Step 3: Cross multiply
    28,680.11x = 39,574.28 × 16,102.43
  4. Step 4: Simplify right side
    28,680.11x = 637,241,992.99
  5. Step 5: Solve for x
    x = 637,241,992.99/28,680.11
  6. Step 6: Final answer
    x = 22,218.95

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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.