Home / 42,379.40-63,579.50-19,572.60

Finding the Fourth Proportional to 42,379.40, 63,579.50 and 19,572.60

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Solution

The fourth proportional to 42,379.40, 63,579.50 and 19,572.60 is: 29,363.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,379.40 : 63,579.50 = 19,572.60 : x
  2. Step 2: Convert to fraction form
    42,379.40/63,579.50 = 19,572.60/x
  3. Step 3: Cross multiply
    42,379.40x = 63,579.50 × 19,572.60
  4. Step 4: Simplify right side
    42,379.40x = 1,244,416,335.66
  5. Step 5: Solve for x
    x = 1,244,416,335.66/42,379.40
  6. Step 6: Final answer
    x = 29,363.71

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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.