Home / 42,679.58-63,933.63-21,267.71

Finding the Fourth Proportional to 42,679.58, 63,933.63 and 21,267.71

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Solution

The fourth proportional to 42,679.58, 63,933.63 and 21,267.71 is: 31,858.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,679.58 : 63,933.63 = 21,267.71 : x
  2. Step 2: Convert to fraction form
    42,679.58/63,933.63 = 21,267.71/x
  3. Step 3: Cross multiply
    42,679.58x = 63,933.63 × 21,267.71
  4. Step 4: Simplify right side
    42,679.58x = 1,359,721,902.09
  5. Step 5: Solve for x
    x = 1,359,721,902.09/42,679.58
  6. Step 6: Final answer
    x = 31,858.84

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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.