Home / 42,793.30-64,196.08-13,213.66

Finding the Fourth Proportional to 42,793.30, 64,196.08 and 13,213.66

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Solution

The fourth proportional to 42,793.30, 64,196.08 and 13,213.66 is: 19,822.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,793.30 : 64,196.08 = 13,213.66 : x
  2. Step 2: Convert to fraction form
    42,793.30/64,196.08 = 13,213.66/x
  3. Step 3: Cross multiply
    42,793.30x = 64,196.08 × 13,213.66
  4. Step 4: Simplify right side
    42,793.30x = 848,265,174.45
  5. Step 5: Solve for x
    x = 848,265,174.45/42,793.30
  6. Step 6: Final answer
    x = 19,822.38

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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.