Home / 42,471.38-63,703.82-12,889.37

Finding the Fourth Proportional to 42,471.38, 63,703.82 and 12,889.37

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Solution

The fourth proportional to 42,471.38, 63,703.82 and 12,889.37 is: 19,333.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,471.38 : 63,703.82 = 12,889.37 : x
  2. Step 2: Convert to fraction form
    42,471.38/63,703.82 = 12,889.37/x
  3. Step 3: Cross multiply
    42,471.38x = 63,703.82 × 12,889.37
  4. Step 4: Simplify right side
    42,471.38x = 821,102,297.88
  5. Step 5: Solve for x
    x = 821,102,297.88/42,471.38
  6. Step 6: Final answer
    x = 19,333.07

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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.