Home / 28,737.98-43,103.32-21,353.21

Finding the Fourth Proportional to 28,737.98, 43,103.32 and 21,353.21

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Solution

The fourth proportional to 28,737.98, 43,103.32 and 21,353.21 is: 32,027.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,737.98 : 43,103.32 = 21,353.21 : x
  2. Step 2: Convert to fraction form
    28,737.98/43,103.32 = 21,353.21/x
  3. Step 3: Cross multiply
    28,737.98x = 43,103.32 × 21,353.21
  4. Step 4: Simplify right side
    28,737.98x = 920,393,921.37
  5. Step 5: Solve for x
    x = 920,393,921.37/28,737.98
  6. Step 6: Final answer
    x = 32,027.10

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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.