Home / 42,007.60-63,013.16-19,539.36

Finding the Fourth Proportional to 42,007.60, 63,013.16 and 19,539.36

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Solution

The fourth proportional to 42,007.60, 63,013.16 and 19,539.36 is: 29,309.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,007.60 : 63,013.16 = 19,539.36 : x
  2. Step 2: Convert to fraction form
    42,007.60/63,013.16 = 19,539.36/x
  3. Step 3: Cross multiply
    42,007.60x = 63,013.16 × 19,539.36
  4. Step 4: Simplify right side
    42,007.60x = 1,231,236,817.98
  5. Step 5: Solve for x
    x = 1,231,236,817.98/42,007.60
  6. Step 6: Final answer
    x = 29,309.86

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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.