Home / 42,503.99-63,758.26-12,919.58

Finding the Fourth Proportional to 42,503.99, 63,758.26 and 12,919.58

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Solution

The fourth proportional to 42,503.99, 63,758.26 and 12,919.58 is: 19,380.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,503.99 : 63,758.26 = 12,919.58 : x
  2. Step 2: Convert to fraction form
    42,503.99/63,758.26 = 12,919.58/x
  3. Step 3: Cross multiply
    42,503.99x = 63,758.26 × 12,919.58
  4. Step 4: Simplify right side
    42,503.99x = 823,729,734.20
  5. Step 5: Solve for x
    x = 823,729,734.20/42,503.99
  6. Step 6: Final answer
    x = 19,380.06

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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.