Home / 42,643.44-63,972.72-20,496.96

Finding the Fourth Proportional to 42,643.44, 63,972.72 and 20,496.96

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Solution

The fourth proportional to 42,643.44, 63,972.72 and 20,496.96 is: 30,749.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,643.44 : 63,972.72 = 20,496.96 : x
  2. Step 2: Convert to fraction form
    42,643.44/63,972.72 = 20,496.96/x
  3. Step 3: Cross multiply
    42,643.44x = 63,972.72 × 20,496.96
  4. Step 4: Simplify right side
    42,643.44x = 1,311,246,282.93
  5. Step 5: Solve for x
    x = 1,311,246,282.93/42,643.44
  6. Step 6: Final answer
    x = 30,749.07

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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.