Home / 42,015.62-63,033.21-18,643.88

Finding the Fourth Proportional to 42,015.62, 63,033.21 and 18,643.88

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Solution

The fourth proportional to 42,015.62, 63,033.21 and 18,643.88 is: 27,970.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,015.62 : 63,033.21 = 18,643.88 : x
  2. Step 2: Convert to fraction form
    42,015.62/63,033.21 = 18,643.88/x
  3. Step 3: Cross multiply
    42,015.62x = 63,033.21 × 18,643.88
  4. Step 4: Simplify right side
    42,015.62x = 1,175,183,288.09
  5. Step 5: Solve for x
    x = 1,175,183,288.09/42,015.62
  6. Step 6: Final answer
    x = 27,970.16

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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.