Home / 28,005.39-38,647.41-16,068.21

Finding the Fourth Proportional to 28,005.39, 38,647.41 and 16,068.21

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Solution

The fourth proportional to 28,005.39, 38,647.41 and 16,068.21 is: 22,174.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,005.39 : 38,647.41 = 16,068.21 : x
  2. Step 2: Convert to fraction form
    28,005.39/38,647.41 = 16,068.21/x
  3. Step 3: Cross multiply
    28,005.39x = 38,647.41 × 16,068.21
  4. Step 4: Simplify right side
    28,005.39x = 620,994,699.84
  5. Step 5: Solve for x
    x = 620,994,699.84/28,005.39
  6. Step 6: Final answer
    x = 22,174.11

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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.