Home / 28,383.12-39,165.72-16,450.20

Finding the Fourth Proportional to 28,383.12, 39,165.72 and 16,450.20

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Solution

The fourth proportional to 28,383.12, 39,165.72 and 16,450.20 is: 22,699.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,383.12 : 39,165.72 = 16,450.20 : x
  2. Step 2: Convert to fraction form
    28,383.12/39,165.72 = 16,450.20/x
  3. Step 3: Cross multiply
    28,383.12x = 39,165.72 × 16,450.20
  4. Step 4: Simplify right side
    28,383.12x = 644,283,927.14
  5. Step 5: Solve for x
    x = 644,283,927.14/28,383.12
  6. Step 6: Final answer
    x = 22,699.55

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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.