Home / 28,320.38-42,477.82-8,599.11

Finding the Fourth Proportional to 28,320.38, 42,477.82 and 8,599.11

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Solution

The fourth proportional to 28,320.38, 42,477.82 and 8,599.11 is: 12,897.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,320.38 : 42,477.82 = 8,599.11 : x
  2. Step 2: Convert to fraction form
    28,320.38/42,477.82 = 8,599.11/x
  3. Step 3: Cross multiply
    28,320.38x = 42,477.82 × 8,599.11
  4. Step 4: Simplify right side
    28,320.38x = 365,271,553.26
  5. Step 5: Solve for x
    x = 365,271,553.26/28,320.38
  6. Step 6: Final answer
    x = 12,897.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.