Home / 28,384.11-39,169.65-16,447.17

Finding the Fourth Proportional to 28,384.11, 39,169.65 and 16,447.17

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Solution

The fourth proportional to 28,384.11, 39,169.65 and 16,447.17 is: 22,696.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,384.11 : 39,169.65 = 16,447.17 : x
  2. Step 2: Convert to fraction form
    28,384.11/39,169.65 = 16,447.17/x
  3. Step 3: Cross multiply
    28,384.11x = 39,169.65 × 16,447.17
  4. Step 4: Simplify right side
    28,384.11x = 644,229,892.39
  5. Step 5: Solve for x
    x = 644,229,892.39/28,384.11
  6. Step 6: Final answer
    x = 22,696.85

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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.