Home / 42,611.72-63,917.23-12,627.95

Finding the Fourth Proportional to 42,611.72, 63,917.23 and 12,627.95

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Solution

The fourth proportional to 42,611.72, 63,917.23 and 12,627.95 is: 18,941.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,611.72 : 63,917.23 = 12,627.95 : x
  2. Step 2: Convert to fraction form
    42,611.72/63,917.23 = 12,627.95/x
  3. Step 3: Cross multiply
    42,611.72x = 63,917.23 × 12,627.95
  4. Step 4: Simplify right side
    42,611.72x = 807,143,233.42
  5. Step 5: Solve for x
    x = 807,143,233.42/42,611.72
  6. Step 6: Final answer
    x = 18,941.82

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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.