Home / 28,382.90-39,168.41-16,453.16

Finding the Fourth Proportional to 28,382.90, 39,168.41 and 16,453.16

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Solution

The fourth proportional to 28,382.90, 39,168.41 and 16,453.16 is: 22,705.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,382.90 : 39,168.41 = 16,453.16 : x
  2. Step 2: Convert to fraction form
    28,382.90/39,168.41 = 16,453.16/x
  3. Step 3: Cross multiply
    28,382.90x = 39,168.41 × 16,453.16
  4. Step 4: Simplify right side
    28,382.90x = 644,443,985.45
  5. Step 5: Solve for x
    x = 644,443,985.45/28,382.90
  6. Step 6: Final answer
    x = 22,705.36

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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.