Home / 42,494.80-63,759.64-18,789.84

Finding the Fourth Proportional to 42,494.80, 63,759.64 and 18,789.84

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Solution

The fourth proportional to 42,494.80, 63,759.64 and 18,789.84 is: 28,192.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,494.80 : 63,759.64 = 18,789.84 : x
  2. Step 2: Convert to fraction form
    42,494.80/63,759.64 = 18,789.84/x
  3. Step 3: Cross multiply
    42,494.80x = 63,759.64 × 18,789.84
  4. Step 4: Simplify right side
    42,494.80x = 1,198,033,434.06
  5. Step 5: Solve for x
    x = 1,198,033,434.06/42,494.80
  6. Step 6: Final answer
    x = 28,192.47

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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.