Home / 42,647.16-63,940.80-14,553.96

Finding the Fourth Proportional to 42,647.16, 63,940.80 and 14,553.96

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Solution

The fourth proportional to 42,647.16, 63,940.80 and 14,553.96 is: 21,820.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,647.16 : 63,940.80 = 14,553.96 : x
  2. Step 2: Convert to fraction form
    42,647.16/63,940.80 = 14,553.96/x
  3. Step 3: Cross multiply
    42,647.16x = 63,940.80 × 14,553.96
  4. Step 4: Simplify right side
    42,647.16x = 930,591,845.57
  5. Step 5: Solve for x
    x = 930,591,845.57/42,647.16
  6. Step 6: Final answer
    x = 21,820.72

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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.