Home / 42,381.09-63,583.11-12,799.89

Finding the Fourth Proportional to 42,381.09, 63,583.11 and 12,799.89

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Solution

The fourth proportional to 42,381.09, 63,583.11 and 12,799.89 is: 19,203.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,381.09 : 63,583.11 = 12,799.89 : x
  2. Step 2: Convert to fraction form
    42,381.09/63,583.11 = 12,799.89/x
  3. Step 3: Cross multiply
    42,381.09x = 63,583.11 × 12,799.89
  4. Step 4: Simplify right side
    42,381.09x = 813,856,813.86
  5. Step 5: Solve for x
    x = 813,856,813.86/42,381.09
  6. Step 6: Final answer
    x = 19,203.30

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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.