Home / 42,494.95-63,743.84-12,912.74

Finding the Fourth Proportional to 42,494.95, 63,743.84 and 12,912.74

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Solution

The fourth proportional to 42,494.95, 63,743.84 and 12,912.74 is: 19,369.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,494.95 : 63,743.84 = 12,912.74 : x
  2. Step 2: Convert to fraction form
    42,494.95/63,743.84 = 12,912.74/x
  3. Step 3: Cross multiply
    42,494.95x = 63,743.84 × 12,912.74
  4. Step 4: Simplify right side
    42,494.95x = 823,107,632.52
  5. Step 5: Solve for x
    x = 823,107,632.52/42,494.95
  6. Step 6: Final answer
    x = 19,369.54

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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.